FAQ: Does pushing harder/different change numbers? Not that we've seen in 76 runs. Also, tightening a bolt with a drill would not have done anything to measure the drill's torque capability, which is why we're not here. Do you want to see more SDS hammers dyno'd? What type? More SDS Max? SDS Plus? Home depot rentals? SDS has been added (for now) onto our air hammer ranking: etsy.me/3G8j3QK But can become its own category if grown. This is the best bang/buck .401" air hammer by our math: amzn.to/3ITtFoI
As a non-car worker, SDS is actually super important for me. I would love to see twisting torque and hand feel measured like you do with the impact wrenches!
great video. there are adapters to use sds hammers with a socket so maybe next time a torque test so you have hammer and you have torque numbers then you can realy compare sds hammers
It is nice to know that if you have a rotary hammer drill like the Milwaukee, you don’t have to go out an buy a pneumatic air hammer for a hammer job. It helps understanding where the tools stand in relation to each other when there is no real scientific comparison available. You guys are doing great work.
I had no idea that was how these worked. It seems to me that a cordless "air" hammer is actually an option. If Milwaukee were to remove all of the drilling parts they could easily slim this thing down and make it more practical and maybe more powerful.
In corded variations they exist, they are called chipping hammers or demo hammers. With hammer weights ranging from 11lb to 28lb. They are the little brothers to jackhammers and exist in atleast 4 sizes that I'm aware of, however none are as compact as a true air chisel or air hammer, instead they are much closer to the roto hammer demonstrated here. I would guess that is because of the addition of electric motor and battery dock.
I’d like too see a similar test with a 1” or 1-1/8” Sds plus . This was a awesome idea for a test I’ve never seen anything like it and always wondered . 👏
As a member of the red army who has both the sds-plus's, theres a massive difference between the 1" and 1-1/8" sds. The 1-1/8" will destroy any drill bit less than 3/8" diameter while the 1" will push a 3/16 bit all day or until you hit rebar.
He should test using a recip saw as a SDS. How many joules of impact energy does a recip saw has? A recip goes back and forth just like a SDS hammer or air hammer.
@@collinzeng9231 A recipe saw goes back and forth, it doesn't use instantaneous hammer blows. It would look like you're rowing a boat and just jiggling your body about.
would love to see more of these. Everything from the small standard system all the way to the big dog jack hammers. Keep holding the manufacturers honest.
Historically, Hilti has prioritized durability and endurance, so it might not actually be more powerful. Also, $1100 for bare tool or kit? If it’s a kit, Makita’s XGT 80V rotary hammer kit goes for like $1500.
I've seen this debated on r/tools several times. Really good to have some dyno numbers on the subject! You guys rock! I agree that I didn't expect a hammer drill to be as powerful as an air hammer. Really impressive results all things considered. I wonder how my SDS+ hammer drill stacks up...
There are definitely much more powerful SDS-Max Hammer/Drills from the likes of Hilti, Makita, Bosch, and Metabo. They also offer chipping hammers only, wi the out the drill modes. Would love to see a separate comparison chart of all the SDS-Max hammer drills…as well as the SDS-Plus category. Would be a nice series of videos you can do. And there’s nothing online like it.
I’d love nothing more than a Project Farm review of SDS-Max Hammer Drills. I just doubt he’ll spend the money on all those top end drills, in particular Hilti or Metabo. He generally skips or avoids reviewing the pro level stuff, cause his channel is more geared towards regular consumers.
@@BigBear-- Makita, DeWalt, and Milwaukee being 'pro level stuff' kinda defeats your argument. With some exception, Project Farm generally runs entry level options from whichever brands he chooses, with some exception (such as using the Fuel multitool in that video).
@@reaperreaper5098 nah he does review some pro stuff, generally in smaller tool categories though. When he does an electric pressure washer comparison though, you won't see a Kranzle or Northern Tool model. Or if he does wet/dry vacs, you'll never see the high end options from Makita, Bosch, Festool, Ridgid, etc...that are like $450+ units. However if he reviews hammer drills, I wouldn't be surprised to see the top end Makita, DeWalt, and Milwaukee offerings. I sort of get it, but not really...I mean I don't think its a money issue, not now anyway. There's plenty of us buy once cry once DIY people out there, so it'll still be interesting, and he can always just break it down into categories like Value, Budget, and High End. The reason I even bring it up, is cause sometimes its worth spending triple on a much better tool, however thats not nearly always the case. Sometimes there's zero value in a much more expensive tool. So its not even like its always that more expensice wins, and that's what I want to know. When is it not worth spending more.
@2:19 - FYI Ft*lbs isn't only a unit of torque, it's also a unit of work (energy). For torque, the foot part of the unit is the distance from center that the force is applied, for work it's the distance that a force is applied over (if you push with a force of 5 lbs for a distance of 1 ft, you've done 5 ft*lbs of work).
The units are the same but they are entirely different measurements. One is a 'force' measurement, the other an energy measurement. In examples like this people often (understandably) assume that 1ft*lb = 1ft*lb, but no. Not when the vector of the two units is 90 degrees different. That vector is not included in the units and that change makes them entirely different and non-correlatable. Context matters.
@@knurlgnar24 the issue is that the units are not the same. Foot-pounds of torque are 1ft * 1lb of force. "Foot-pounds" of energy (also used for e.g. bullets) are foot-per-second (squared) pounds, or 1 lb * 1 (ft/s)^2.
@@justAnotherMike82 what wud you call noncommutative spinor? Professor Basil J. Hiley calls it a novel "force" that iis nonlocal - or novel "energy" - in reality it's neither and both as "active information!" thanks
Is there any chance the length of the bit used in the SDS was “flexing” some of the hammering power away? Just comparing with the very short length of the air hammers.
I’ve always wanted to be able to use an air hammer but I’m rarely near an air compressor that’s big enough to remove stuck brake rotors or push out axle shafts. I’d be curious to see if they have any compact versions. Maybe someday they will come out with a dedicated electric hammer version without the drilling function. Could be nice to also see the smaller Harbor Freight Chief air hammer which is only $40 at my local store. Good work!
@@lolatmyage And they are big and heavy because they are designed to be used in demolition of concrete structures not to loosen stuck rotors. So there is no direct electric alternative for air hammer targeted at car mechanics
@@mysterious_czrs Not really, the smaller ones weight less than 15 pounds and can be swung quite easily. Dull the bit and it will rattle a brake rotor just fine although yes, it might not be good for the tool or your hands if you're hitting an immovable object as I've found that this tool works nicest when it is making progress.
At work, we've often taken a full SDS drill bit, cut off the end, add a slot and use it on the rotary hammer to drive cleats that join ductwork. It's loud, so very loud, but way easier than using my arms.
I’ve ruined many a cordless drill’s using the hammer option too much, I got a Milwaukee 1” cordless SDS, I’ve drilled 1000’s of holes in concrete no problem, right tool, for the right job.
Very true, the hammer function on a smaller drill isn't really for more than 6, occasionally 10 mm holes. If it's SDS then it will likely hold up a lot better to heavier work
i would actually love to see you do this with the smaller sds plus models such as the milwuakee the dewalt the bosch I would send you mine but i use it everyday for work basically
Yes, an SDS can do the job. I could not get the front wheel bearings off a 2006 Sierra with any of my air hammers. I spent at least 20 minutes on it before I got out my Makita HR4002 rotary hammer. In hammer only with a very dull bit, it took more time to run the extension cord than to get the first bearing off. The second one yielded even more quickly. There is a threshold that needs to be met, and this unit definitely passed it on that job. After getting the bearings out I spent another 30 minutes sweeping up half of the truck that landed on the floor in the form of rust. Frankly, I have not messed with the air hammers to much since, even the Thor, because the Makita or my Unitec 162/3 make short work of making things come apart, and the compressor is happier, too.
@@zachary3777 I have the Thor 498K. All I can say is that the Makita worked where the Thor and IRs failed. I tend to use the IR 114 if I am already using the air hose and if that is not enough I go for one of the electric ones, but for most things I use the battery powered stuff, so grabbing the hose or the extension cord is a wash. Since my construction tools are just on the other side of the room, I just go full nuke rather than waste any more time. The Thor is nice, but I have more bits and the scaler fits the IR, so the Thor is a toolbox queen.
@@kenchilton do you think it is noticeably stronger than a long stroke 401 gun like the IR 119max? There are a lot more 401 bits available so I am inclined to go that way, after looking at the specs. The cylinder bore on each is 3/4"
The energy conversion rate for ft Lbs to Joiles is 1ftLb=1.356J So the Milwaukee claims 6.8Joules. that must be per impact. So if you know the impacts per minute, you could calculate the useful power. It's based off a joule is a unit of work done. Work done(J) = Force (N) x distance (m) So if it moves the piston 1mm it should be applying 1000N of force to dissipate 1Joule of energy. Edit: 3000bpm at 6.8 joules means they claim 340Watts of useful power transfer. That seems realistic.
I think there is enough sds hammer drills to have it’s own class aside from air hammers. Maybe try some corded versions to see how well they compare to battery powered.
SDS Max and SDS Plus tests are awesome, the Milwaukee SDS Max that you were using is quite weak compared to the really big SDS Max Hammer Drills, like the Bosch GBH 8-45DV that has a cinetic impact energy of 12,5J which equals to around 9 to 10 ft-lb.
Hopefully this isn't the only SDS stuff you do on the channel, I know there is some more compact SDS Plus hammers like the Ryobi P222 that I wonder about.
Ft lbs is energy the SI version is Joules ( J ). Most SDS Plus here in the UK seem to be ~2J or ~8J with SDS Max 10J or ~20J. It would be nice to see a compact SDS Plus comparison some 12v tools are much closer in size to the air hammers.
Great idea of measuring the strikes of hammers! Finally something more than the Joule figures by the manufacturers. I would love to see all those categories compared now!
OMG ,,, I CAN'T BELIEVE A TOP RUclips CHANNEL ACTUALLY LISTENS TO THEIR FANS ,,,,, WE ASKED TO SEE THESE SDS HAMMERS TESTED AND THIS CHANNEL DID THAT AND MORE. PLEASE TAKE IT FROM US TTC IS THE GREATEST CHANNEL ON RUclips ... THEY ARE HONEST STRAIGHT FORWARD AND TO THE POINT WHAT ELSE COULD YOU WANT AND IT'S FREE ,,, THANK THE HAVENS FOR TTC !!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!
Man...where was this a few years back before I bought an air compressor because I needed an air hammer and couldn't find any information on rotary hamer drills as a substitute. One of the few tools still requiring an air compressor....
Very interesting stuff guys! I do rotary hammer testing on my channel but I've never used an air hammer before. Are they for knocking loose seized bolts? Your type of cumulative force measurement is definitely different to what you'd normally do to measure SDS hammers. Very cool crossover measurement.
Ft*lb is a unit of energy* And the reason some of us take the trouble to us lb*ft for torque. A ft*lb is the energy required to lift one pound one ft at the earths surface.
My neighbor fashioned a "cup" or socket in lg. sds to drive copper ground rods in. Unless you hit a big rock, it's going in. If you hit a small rock it either displaces it or breaks it. I'm not surprised at the relative amount of chooch here.. Really neat tools.
Hey mate I'm interested in this "cup". Do you know if your neighbour has a public image or video of it? I'm so tired of driving the rods with a Sledge hammer 😅
@@wearsjorge55 Ground rod driver attachments are sold at home improvement stores, they work well. The SDS Max are significantly better than SDS+ if you happen to have generator available on site.
@@wearsjorge55 Well I asked him, and it was store bought from dewalt. I searched and sure enough, DW5947. It looked more "crude" than his other sds bits so I assumed it was hand made.
Very interesting video! Thanks for sharing this! Can't imagine lugging that SDS Rotary Hammer around under, or inside of, a car though. I think we're still a ways away from having anything electric that is close to a good air hammer's power to size/weight ratio.
We want to see more legit tools tested from impacts to what ever you can afford. Would be greatly appreciated if you can take some apart and sacrifice them for science and our viewing pleasure.
With the work I do, we use a rotory drill when we need to drill through concrete or brick and we use a bosh corded so I'd like to get a new cordless rotory drill and see which one is better
Beautiful, your channel is worth a watch every time you upload and this is no exception. This information will certainly be put to use, even if I am a measly electro-mechanical engineer (spanner twirling monkey for a sizeable company).
Leave the SDS's on the chart. I for one, would prefer to have a tool that can do both. So being able to see how they all stack up against each other, but the size is a good thing to consider.
Great video, would love to see the results of the 2718 1 3/4 milwaukee. Its $1200 with two 12.0 batteries. It will drill a 5” hole through a 9” thick solid pored wall plus rebar. Its a beast!
Torque is measured in lb-ft being, (force over leverage/working length from center) . Force applied over area is measured in ft-lbs being, (force over area). It's a all too common a mistake to mix the too up that has been perpetuated for a long time. Hammering type tools should in fact be measured in ft-lbs over time, (work done over time=power) much like the relationship between torque and horsepower. Torque alone is kinda worthless, as is time. But together they are power. Thanks for all the hard work and time guys.
I've always had the thought of why someone hasn't made portable "air" hammers so I just cut the end off of one of my old chisel sds bits and use that for a hammer bit.
I would definitely like seeing more SDS hammers like the 60V Dewalt, not sure if they should go against air hammers due to completely different applications. I don't think any mechanics are using SDS hammers for stuck parts, but if you do more of these some construction guys would be interested for sure.
Does the weight of the impacting "bit" make any difference? It was found that heavier impact sockets lead to better results, I wonder if that's a factor here too?
Wow!!!! Was not expecting that. I was really expecting maybe 1/2 the power of the snap on. Pretty cool. Edit: I want to see more SDS drills tested. Maybe on their own rank chart.
@@TorqueTestChannel okay i rewatched and stick with my original comment. You were holding two different tools horizontally that have an major weight difference between tools. Without a jig to hold the tool weight horizontally and a controlled amount of force being placed on both tools. This test could go whichever way the person conducting the test wants it to go.
Well we have the data to show that's not true (pushing as hard as we can vs holding it normal) otherwise we wouldn't have made the 1st air hammer episode. But everyone in the comments is a physicist after all, so feel free to disregard
Can I send you my new Craftsman RP impact driver to compare to others? It’s boasting gen 2 like beans. From my view it seems like their made in USA one, just significantly cheaper. But i could be wrong. Part number is CMCF813B. Boasting 30% mo powa baby with just a 1.5ah battery, even though craftsman doesn’t sell a 1.5ah battery…..lol 30% based on 3 deck screws into 4x4 pressure treated wood vs CMCF800 (which is the giant brushed impact that sells for $129 vs new RPs $79.)
While I don’t have any SDS tools to send you to test, I’d like to see both the larger 2718-20 and the smaller (but not too small) 2912-20 tested. The 2718-20 is 1 3/4in, and advertises 8.1ft-lbs per blow. The 2912-20 is 1in and advertises a fine 2ft-lbs, but 4,800bpm. Would really like more coverage on rotary hammers!
I've used my SDS drills to hammer ball joints and pins and stuff out plenty of times in a pinch when having to repair a vehicle or trailer while out on the road. It usually works.
I've looked around SOOOOO many times for a cordless electric "air hammer" (for lack of a better word) there's a DEFINITE demand-i can't even TELL you how many times something has gotten 'tweaked' at the track, or I run into a minor clearance issue on a wheel/tire or suspension component vs body/unibody support/ sheetmetal seam while out racing or doing a shakedown... Like 90% of the time, that kind of powered hammer would fix it in like 2 minutes max, with nothing more than *MAYBE* a jack, a stand, and a strap... Instead, currently I'm stuck either towing the vehicle on a trailer or having someone follow along in a chase vehicle, and pack out a generator, compressor, and air tools... If I don't haul or have a chase vehicle with the needed tools, the only option is to suffer and resort to jacking the vehicle high enough in the air, pulling the wheel, and removing enough various OTHER components to get enough access to the problem area, just to be able to hit it with a dead-blow or sledge. The vast majority of the time, I much prefer to just toss a few essential tools into the vehicle in question, and then take 5 minutes once I arrive to set up a little pit area, simply because it's so dang CONVENIENT... My normal "essential tools" pack-out I always bring with already HAS a few batteries and a few electric tools (impact driver/impact wrench/inflator/work light/ect), it would be as easy as tossing the hammer and a few bits into my kit- it would save SOOOOO much time and effort!!!
Makita does an XGT SDS Max drill, in the UK its the HR006GZ. It says it can do a max of 21.4 J, which is more than the Milwaukee from what i can tell. It would be cool to see that one tested to see how powerful it is, even if it would be impractical for mechanics, etc.
You brought up a good point in the possible vertical advantage of the SDS due to the weight of the tool. Id be interested to find out if there are any gains in vertical vs horizontal. I feel like they could make a purpose built compact M12 hammer, I hope that that happens one day...
hey Torque, can you test the SDS Plus to square socket adapters (3/8" and 1/2") found on Ebay and Amazon. Would be great to know how does an SDS Plus rotary hammer stacks up against an impact driver or wrench when it comes to torque and it it would be suitable for driving/removing bolts and lags. Thanks
was using a Hilti TE-1000 (40lb electric breaker) this week at work to get out a siezed 3" pin. Was more just to shock the pin as I had a 22T bottle jack pushing it out, but it wouldn't have been coming out otherwise. I still had the TE-2000 and TE-3000 (55lb and 70lb) breakers if i needed more jam, but that would have been a quite awkward one person balancing act. These are all electric plug in models, so I don't know if they would be a fair fit in the rankings.
Different tools for different applications... The large corded demolition hammers are crazy powerful though id love to see one of those on the dyno like a Bosch GSH 11 E or "11316EVS" in the US. That's a 22.5 lb hammer and you need that weight in a demo hammer to cancel out the vibrations and to have something to weight the hammer down onto the chisel when working vertically. The GSH 11 E is especially well balanced in that regard it just has the perfect ratio between the weight and impact energy. Also this model has been engineered in the late 90s as is still one of the most popular professional demohammers. That's german engineering of the good kind. It would be virtually impossible to work with an airhammer of the same impact energy.
FYI, ft-lbs is not a unit of torque, it's energy: pushing with a force of 1 lb, for a distance of 1 ft. Lb-ft is the proper term for torque, as in 1 lb-force at 1 ft radius.
I'd be curious if Milwaukee makes, or will make, an MX Fuel SDS. Given the MX battery, I think the weakest link would become the piston setup. I'd also be curious to see if any other the other companies make an SDS with their elevated battery platforms, like Makita's XGT platform, DeWalt's FlexVolt platform, etc. I have a feeling the hammer is an instance where the tool would benefit from a higher voltage platform, at least more beneficial than throwing more amps on a lower voltage platform, which mostly just comes down to better motor design at the end of the day.
I forget the model but I've been using the Bosch. It def handles an 18" X 1 1/4" bit with no issue. I'd be lying if I said I didn't wanna play with milukees version though. I digress excellent and unique video. Very enjoyable thankyou guys for taking the time to make it. Hope the lawsuit bullshit is going away
Impact hammers are usualy rated in Joules of impact. The SDS rotary hammers are designed to drill rocks and concrete. The rock must chip and then turn and chip again to drill a hole. The chiping part is exploiting the low resilience of the rock (can't absorb an impact over that many Joues -tested in the lab with Izod hammer or Charpay hammer - usually to find resilience values for steels and other metals but same principle for rocks and concrete). So in order to drill rock you need more Joules of impact than the rock can handle in order to chip each strike. Note that the hammer Joules are absorbed over larger area on larger bits, and can be losses in the elasticity and inertia of heavy bits, and in the friction in deep holes, or in the debries cushioning the blow. So these rotary hammers are rated in Joues of impact. Typical SDS is 1-7J, SDS plus 2-10J, SDS max 5-20J, hex shank (demolition hammer) 15-100J, and then you go into pneumatic jackhammers with more and more Joules needed for harder rocks, larger bits, larger chips, preferably a chip so big that it fractures a whole slab (for a jackhammer or demolition hammer)
It is not measured in a torque figure (kinda) the pound part expresses force and the foot expresses distance. When you put them into w=fd then you can use that to calculate energy. 1 nm = 1 joule. since 1 lb/ft of torque = 1.356 nm, the 5 ft lb figure would equal about 6.78 joules per impact
Love the mini lessons throughout your content. Y'all oughta be sponsored by Bush's or the like if you're going to have to engineer, design and build ways to test tools that tool manufacturers won't bother with, still completely unbiased. It'd be crazy cool to see a TTC rating on a box one day. 😊
This ft-lb is dropping impact energy, not turning force (force applied to the lever arm). So 5 ft-lbs would be a 5lb weight dropped 1 foot up, or any equivalent combination of that. Potential energy from height is equal to mass x gravity x height
With that mechanism I’d think they could make some truly small hammers which would be really dope for getting small pins out! And hear me out here… if at the end of the day both tools are being powered via air… that air is made by AC voltage in a compressor so knowing the shortcomings there you’d think in a small volume that high discharge DC could produce significantly more air pressure if they put their minds to it.
Impact energy can be expressed in ft. lbs., but they're different ft. lbs. than torque. In torque ft. lbs., the direction of the ft. and lbs. are perpendicular (the force is applied tangentially to the distance from the fulcrum), whereas for energy, they're parallel (the force is applied across a certain distance, and those figures multiplied together is the work done, which is equivalent to the energy used to perform that work). Despite having the same name, these are different units. If you convert to metric, energy ft. lbs. become Joules, and torque ft. lbs. become Newton-meters.
So I use the harbor freight snap on knock off air hammer to sink 16 and 18 gauge hot rolled sheet steel and 55 gallon metal barrel lids (for handpans ) but my problem is that my air compressor can't keep up so I have to take break constantly which makes the sinking process take forever. but from what I'm gathering these SDS electric rotary Hammer drills might have enough humph the football to get the job done and not we're out my air compressor Am I assuming correctly?
In Europe we have a EPTA norm. If company want to compere to competitor, must have this norm. Impact power is in Joule. I think important is also lenght of chisel sds max was much longer than air Hammers. Another think: "fresh" cold Hammer have less power than the same warm Hammer because piston is tighter.
You guys should test the Milwaukee 2” Demolition hammer if you can get your hands on one. It advertises 20 Lbs of impacting force. I have one, as well as the 1 9/16” you guys tested in this video and they aren’t even close in comparison. That demo hammer is insane, you had better be awfully committed to holding onto it or you’re going for a ride
This was pretty cool to see, I never thought of using my sds in place of an air hammer. It would be cool to see how milwaukes bigger 1 3/4" sds max does for power on your dyno.
Needing a very expensive air compressor (even more expensive if portable, 5HP consumer grade compressors are feeble things) is a very good argument for using a hammer drill in many situations. Someone needs to sell SDS ball joint forks but one might be milled from another tool using a carbide end mill. I need to measure a clay spade and some scaling chisels to see if they're thick enough.
“Bigger than the hammer drill you have at home” My guy, I have that Milwaukee rotary hammer sitting in my room, with plans to buy the Metabo HPT counterpart and maybe even the Makita XGT big boy.
FAQ: Does pushing harder/different change numbers? Not that we've seen in 76 runs. Also, tightening a bolt with a drill would not have done anything to measure the drill's torque capability, which is why we're not here. Do you want to see more SDS hammers dyno'd? What type? More SDS Max? SDS Plus? Home depot rentals? SDS has been added (for now) onto our air hammer ranking: etsy.me/3G8j3QK But can become its own category if grown. This is the best bang/buck .401" air hammer by our math: amzn.to/3ITtFoI
Can you guys try the Ridgid R86711B if you do another video? Thanks for all the great work/content!
Dewalt dch133
As a non-car worker, SDS is actually super important for me. I would love to see twisting torque and hand feel measured like you do with the impact wrenches!
Some of the smaller SDS plus tools would be nice, since size and weight wise they might compare better with air hammers.
great video. there are adapters to use sds hammers with a socket so maybe next time a torque test so you have hammer and you have torque numbers then you can realy compare sds hammers
It is nice to know that if you have a rotary hammer drill like the Milwaukee, you don’t have to go out an buy a pneumatic air hammer for a hammer job. It helps understanding where the tools stand in relation to each other when there is no real scientific comparison available. You guys are doing great work.
I had no idea that was how these worked. It seems to me that a cordless "air" hammer is actually an option. If Milwaukee were to remove all of the drilling parts they could easily slim this thing down and make it more practical and maybe more powerful.
In corded variations they exist, they are called chipping hammers or demo hammers. With hammer weights ranging from 11lb to 28lb.
They are the little brothers to jackhammers and exist in atleast 4 sizes that I'm aware of, however none are as compact as a true air chisel or air hammer, instead they are much closer to the roto hammer demonstrated here.
I would guess that is because of the addition of electric motor and battery dock.
@@lightjedi6 company’s will find a way to make one. thier just has to be a demand for that. i saw a few years thier will be a electric air hammer
I'd love to see a m18 needle gun some day.
@@lightjedi6 yes there a pain to run all day busting out refractory.
They already make electric demo hammers. I prefer to have the rotary hammer with hammer option for what I do with it.
I’d like too see a similar test with a 1” or 1-1/8” Sds plus . This was a awesome idea for a test I’ve never seen anything like it and always wondered . 👏
Id like to see the sds plus too.
Yes, a 1” and 1-1/18 SDS would be ideal, this is the most common size used for most installations, it’s what I have.
A top of line SDS+ is rated for about 2.4 ft.lb, as oppose to 5 of this SDS max. So I'd expect it to perform about half as well.
D handle corded vs cordless?
As a member of the red army who has both the sds-plus's, theres a massive difference between the 1" and 1-1/8" sds. The 1-1/8" will destroy any drill bit less than 3/8" diameter while the 1" will push a 3/16 bit all day or until you hit rebar.
I want to see some of the compact SDS stuff like that DW Atomic.
He should test using a recip saw as a SDS. How many joules of impact energy does a recip saw has? A recip goes back and forth just like a SDS hammer or air hammer.
@@collinzeng9231 A recipe saw goes back and forth, it doesn't use instantaneous hammer blows. It would look like you're rowing a boat and just jiggling your body about.
@Collin Zeng it would be a great idea since most people would have the recip over an sds
Including their 12V Extreme SDS.
The atomic doesn't even have hammer only mode
Your blowing new doors open on information never relisted before. Excellent channel and work to inform us tool owners. Thank You!
would love to see more of these. Everything from the small standard system all the way to the big dog jack hammers. Keep holding the manufacturers honest.
i'd love to see the Hilti Cordless SDS Max tested. theyre probably most expensive in class at around $1,100. does that equal more better
Equals more better warranty at very least lol 😂
I'd put my bottom dollar on betting they're the best
Hilti... Probably not. They are in it for the money.
For $415 U can get the Metabo HPT 36V SDS MAX Rotary which can go all day with it's AC adapter and lifetime warranty
Historically, Hilti has prioritized durability and endurance, so it might not actually be more powerful.
Also, $1100 for bare tool or kit? If it’s a kit, Makita’s XGT 80V rotary hammer kit goes for like $1500.
I've seen this debated on r/tools several times. Really good to have some dyno numbers on the subject! You guys rock!
I agree that I didn't expect a hammer drill to be as powerful as an air hammer. Really impressive results all things considered. I wonder how my SDS+ hammer drill stacks up...
I’d like to see some corded SDS drills in hammer only mode on here.
This. I am late to the video but air is tethered - would be nice to compare with tethered (plug in) SDS hammer drills for comparison.
There are definitely much more powerful SDS-Max Hammer/Drills from the likes of Hilti, Makita, Bosch, and Metabo. They also offer chipping hammers only, wi the out the drill modes. Would love to see a separate comparison chart of all the SDS-Max hammer drills…as well as the SDS-Plus category. Would be a nice series of videos you can do. And there’s nothing online like it.
Seems like a job for project farm
I’d love nothing more than a Project Farm review of SDS-Max Hammer Drills. I just doubt he’ll spend the money on all those top end drills, in particular Hilti or Metabo. He generally skips or avoids reviewing the pro level stuff, cause his channel is more geared towards regular consumers.
@@BigBear-- just regular SDS stuff
@@BigBear-- Makita, DeWalt, and Milwaukee being 'pro level stuff' kinda defeats your argument.
With some exception, Project Farm generally runs entry level options from whichever brands he chooses, with some exception (such as using the Fuel multitool in that video).
@@reaperreaper5098 nah he does review some pro stuff, generally in smaller tool categories though. When he does an electric pressure washer comparison though, you won't see a Kranzle or Northern Tool model. Or if he does wet/dry vacs, you'll never see the high end options from Makita, Bosch, Festool, Ridgid, etc...that are like $450+ units. However if he reviews hammer drills, I wouldn't be surprised to see the top end Makita, DeWalt, and Milwaukee offerings. I sort of get it, but not really...I mean I don't think its a money issue, not now anyway. There's plenty of us buy once cry once DIY people out there, so it'll still be interesting, and he can always just break it down into categories like Value, Budget, and High End.
The reason I even bring it up, is cause sometimes its worth spending triple on a much better tool, however thats not nearly always the case. Sometimes there's zero value in a much more expensive tool. So its not even like its always that more expensice wins, and that's what I want to know. When is it not worth spending more.
So use an sds drill to change my oil? Ok 👌
Love the sds added to the testing. I've used my sds as an air hammer when air wasn't available and was pleasantly surprised
@2:19 - FYI Ft*lbs isn't only a unit of torque, it's also a unit of work (energy). For torque, the foot part of the unit is the distance from center that the force is applied, for work it's the distance that a force is applied over (if you push with a force of 5 lbs for a distance of 1 ft, you've done 5 ft*lbs of work).
The units are the same but they are entirely different measurements. One is a 'force' measurement, the other an energy measurement. In examples like this people often (understandably) assume that 1ft*lb = 1ft*lb, but no. Not when the vector of the two units is 90 degrees different. That vector is not included in the units and that change makes them entirely different and non-correlatable. Context matters.
@@knurlgnar24 the issue is that the units are not the same. Foot-pounds of torque are 1ft * 1lb of force. "Foot-pounds" of energy (also used for e.g. bullets) are foot-per-second (squared) pounds, or 1 lb * 1 (ft/s)^2.
the physics explanation is that torque is a cross-product (and a vector quantity) while energy is a dot product (and a scalar quantity)
@@justAnotherMike82 what wud you call noncommutative spinor? Professor Basil J. Hiley calls it a novel "force" that iis nonlocal - or novel "energy" - in reality it's neither and both as "active information!" thanks
Is there any chance the length of the bit used in the SDS was “flexing” some of the hammering power away? Just comparing with the very short length of the air hammers.
I’ve always wanted to be able to use an air hammer but I’m rarely near an air compressor that’s big enough to remove stuck brake rotors or push out axle shafts. I’d be curious to see if they have any compact versions. Maybe someday they will come out with a dedicated electric hammer version without the drilling function. Could be nice to also see the smaller Harbor Freight Chief air hammer which is only $40 at my local store. Good work!
There are plenty of hammer-only tools but many are corded
@@lolatmyage And they are big and heavy because they are designed to be used in demolition of concrete structures not to loosen stuck rotors. So there is no direct electric alternative for air hammer targeted at car mechanics
@@mysterious_czrs Not really, the smaller ones weight less than 15 pounds and can be swung quite easily. Dull the bit and it will rattle a brake rotor just fine although yes, it might not be good for the tool or your hands if you're hitting an immovable object as I've found that this tool works nicest when it is making progress.
What about a palm nailer?
Interesting question!@@fnnsjsnnejejdndnxhxjna
i wonder how sds chipping hammers would compare since they are just rotary hammers drills that dont rotate
YESSS. I asked for this specifically and you delivered. My dudes...
At work, we've often taken a full SDS drill bit, cut off the end, add a slot and use it on the rotary hammer to drive cleats that join ductwork. It's loud, so very loud, but way easier than using my arms.
I’ve ruined many a cordless drill’s using the hammer option too much, I got a Milwaukee 1” cordless SDS, I’ve drilled 1000’s of holes in concrete no problem, right tool, for the right job.
Very true, the hammer function on a smaller drill isn't really for more than 6, occasionally 10 mm holes. If it's SDS then it will likely hold up a lot better to heavier work
i would actually love to see you do this with the smaller sds plus models such as the milwuakee the dewalt the bosch I would send you mine but i use it everyday for work basically
Yes, an SDS can do the job. I could not get the front wheel bearings off a 2006 Sierra with any of my air hammers. I spent at least 20 minutes on it before I got out my Makita HR4002 rotary hammer. In hammer only with a very dull bit, it took more time to run the extension cord than to get the first bearing off. The second one yielded even more quickly. There is a threshold that needs to be met, and this unit definitely passed it on that job. After getting the bearings out I spent another 30 minutes sweeping up half of the truck that landed on the floor in the form of rust. Frankly, I have not messed with the air hammers to much since, even the Thor, because the Makita or my Unitec 162/3 make short work of making things come apart, and the compressor is happier, too.
You have a thor 498k? I have been looking for one but no one had it. Is it weaker than the makita?
@@zachary3777 I have the Thor 498K. All I can say is that the Makita worked where the Thor and IRs failed. I tend to use the IR 114 if I am already using the air hose and if that is not enough I go for one of the electric ones, but for most things I use the battery powered stuff, so grabbing the hose or the extension cord is a wash. Since my construction tools are just on the other side of the room, I just go full nuke rather than waste any more time. The Thor is nice, but I have more bits and the scaler fits the IR, so the Thor is a toolbox queen.
@@kenchilton do you think it is noticeably stronger than a long stroke 401 gun like the IR 119max? There are a lot more 401 bits available so I am inclined to go that way, after looking at the specs. The cylinder bore on each is 3/4"
I've got and old corded MacAlister sds rotary I bought about 10 years ago. Abused it to death and it's still a beast.
I regularly use a Hilti TE-70 in the shop to hammer out bearings. Works awesome, doesn't bounce and skate around as much as my .498 hammer.
The energy conversion rate for ft Lbs to Joiles is 1ftLb=1.356J
So the Milwaukee claims 6.8Joules. that must be per impact. So if you know the impacts per minute, you could calculate the useful power.
It's based off a joule is a unit of work done. Work done(J) = Force (N) x distance (m)
So if it moves the piston 1mm it should be applying 1000N of force to dissipate 1Joule of energy.
Edit:
3000bpm at 6.8 joules means they claim 340Watts of useful power transfer. That seems realistic.
I think there is enough sds hammer drills to have it’s own class aside from air hammers. Maybe try some corded versions to see how well they compare to battery powered.
My favorite channel on RUclips 😊
Definitely one of the most consistent when it comes to quality
@@LIKEcommentANDsubscribe absolutely agree
SDS Max and SDS Plus tests are awesome, the Milwaukee SDS Max that you were using is quite weak compared to the really big SDS Max Hammer Drills, like the Bosch GBH 8-45DV that has a cinetic impact energy of 12,5J which equals to around 9 to 10 ft-lb.
Love for u to test the Metabo HPT SDS Max 36V as it also can be plugged in, which I do when ai have longer jobs-I don't feel much if any difference
Hopefully this isn't the only SDS stuff you do on the channel, I know there is some more compact SDS Plus hammers like the Ryobi P222 that I wonder about.
This was a fantastic video from start to finish. Thanks for doing it! I wonder how 110v AC compares to the battery powered beans 🤔
Can you test knee pads? Which last the longest, most comfortable/padding, least amount of friction when sliding around?
Ft lbs is energy the SI version is Joules ( J ).
Most SDS Plus here in the UK seem to be ~2J or ~8J with SDS Max 10J or ~20J.
It would be nice to see a compact SDS Plus comparison some 12v tools are much closer in size to the air hammers.
I've Joules used in advertisements of these.
We use sds rotohammers all the time for foundation work and always wondered how they work and how hard they hit,awesome video y'all!
Great idea of measuring the strikes of hammers!
Finally something more than the Joule figures by the manufacturers.
I would love to see all those categories compared now!
OMG ,,, I CAN'T BELIEVE A TOP RUclips CHANNEL ACTUALLY LISTENS TO THEIR FANS ,,,,, WE ASKED TO SEE THESE SDS HAMMERS TESTED AND THIS CHANNEL DID THAT AND MORE. PLEASE TAKE IT FROM US TTC IS THE GREATEST CHANNEL ON RUclips ... THEY ARE HONEST STRAIGHT FORWARD AND TO THE POINT WHAT ELSE COULD YOU WANT AND IT'S FREE ,,, THANK THE HAVENS FOR TTC !!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!
Man...where was this a few years back before I bought an air compressor because I needed an air hammer and couldn't find any information on rotary hamer drills as a substitute. One of the few tools still requiring an air compressor....
Milwaukee makes an m12 palm nail hammer thing used in framing. They should scale it up to an m18 and make it into a cordless "air" hammer.
Of course air hammers get much larger than the ones you have tested, just look at rivet busters & chipping hammers.
Very interesting stuff guys! I do rotary hammer testing on my channel but I've never used an air hammer before. Are they for knocking loose seized bolts? Your type of cumulative force measurement is definitely different to what you'd normally do to measure SDS hammers. Very cool crossover measurement.
Hey yeah! Ball joints, rusted car parts. Brake rotors. Stuff like that
Why not a portable jack hammer? They're lighter and purpose built electric hammers.
Ft*lb is a unit of energy*
And the reason some of us take the trouble to us lb*ft for torque.
A ft*lb is the energy required to lift one pound one ft at the earths surface.
My neighbor fashioned a "cup" or socket in lg. sds to drive copper ground rods in. Unless you hit a big rock, it's going in. If you hit a small rock it either displaces it or breaks it. I'm not surprised at the relative amount of chooch here.. Really neat tools.
Hey mate I'm interested in this "cup". Do you know if your neighbour has a public image or video of it? I'm so tired of driving the rods with a Sledge hammer 😅
@@wearsjorge55 Ground rod driver attachments are sold at home improvement stores, they work well. The SDS Max are significantly better than SDS+ if you happen to have generator available on site.
@@wearsjorge55 Well I asked him, and it was store bought from dewalt. I searched and sure enough, DW5947. It looked more "crude" than his other sds bits so I assumed it was hand made.
@@Little_bane thank you!
@@mattfleming86 cheers mate really appreciate it
Very interesting video! Thanks for sharing this! Can't imagine lugging that SDS Rotary Hammer around under, or inside of, a car though. I think we're still a ways away from having anything electric that is close to a good air hammer's power to size/weight ratio.
I say create another category for just SDS, then do corded versions and cordless.
Try a Metabo HPT/ Hikoki
Brilliant explanation keep that way many tanks 👏🏻👏🏻👏🏻
We want to see more legit tools tested from impacts to what ever you can afford. Would be greatly appreciated if you can take some apart and sacrifice them for science and our viewing pleasure.
Ave gives some awesome tool science
These guys have a whole channel dedicated go testing and taking apart impacts. Browse through their videos and you'll see.
You need to check out AvE on RUclips
@@bensmith6051 I had seen all test reviews by Ave but in recent times his not doing it with regular update of ttc
Nah, do what they shine at, which is scientific performance testing, then ship the tested tools to AvE for proper tear down and hilarious commentary.
With the work I do, we use a rotory drill when we need to drill through concrete or brick and we use a bosh corded so I'd like to get a new cordless rotory drill and see which one is better
Beautiful, your channel is worth a watch every time you upload and this is no exception. This information will certainly be put to use, even if I am a measly electro-mechanical engineer (spanner twirling monkey for a sizeable company).
I loved your description of the work you do, same job here, I’ll have to steal that line if you don’t mind.
@@truthserum9157 Probably not even mine in the first place hahaha. Take care, mate 👍
Wow just used both on my car yesterday and was wondering how it stacked up! Awesome to see
That would probably be 5 lb force not 5 foot pounds. Confusingly there abbreviations are somewhat interchangeable.
Can this be used to chisel rusty car suspension parts?
Leave the SDS's on the chart. I for one, would prefer to have a tool that can do both. So being able to see how they all stack up against each other, but the size is a good thing to consider.
Is .498 shank air hammers in the works? Love your guys channel
100%
Would love to see more realistically sized sds drills for use in a home shop
Uncle bumblefuck lol. Gotta love AvE.
Great video, would love to see the results of the 2718 1 3/4 milwaukee. Its $1200 with two 12.0 batteries. It will drill a 5” hole through a 9” thick solid pored wall plus rebar. Its a beast!
Torque is measured in lb-ft being, (force over leverage/working length from center) . Force applied over area is measured in ft-lbs being, (force over area). It's a all too common a mistake to mix the too up that has been perpetuated for a long time. Hammering type tools should in fact be measured in ft-lbs over time, (work done over time=power) much like the relationship between torque and horsepower. Torque alone is kinda worthless, as is time. But together they are power. Thanks for all the hard work and time guys.
I've always had the thought of why someone hasn't made portable "air" hammers so I just cut the end off of one of my old chisel sds bits and use that for a hammer bit.
So does this mean you get the same power in the handheld air hammers that you do in this big electric rotary hammer?
Really loving the channel, appreciate the work you guys are putting in!
Yes more tests please ! Would like to see the Dewalt line of SDS drills. I have a DCH 133 I can send you to test.
Dam “Uncle Bumble Fuck”
I would definitely like seeing more SDS hammers like the 60V Dewalt, not sure if they should go against air hammers due to completely different applications. I don't think any mechanics are using SDS hammers for stuck parts, but if you do more of these some construction guys would be interested for sure.
Does the weight of the impacting "bit" make any difference? It was found that heavier impact sockets lead to better results, I wonder if that's a factor here too?
Wow!!!! Was not expecting that. I was really expecting maybe 1/2 the power of the snap on. Pretty cool.
Edit: I want to see more SDS drills tested. Maybe on their own rank chart.
Uncle bumble fuck lol nice
Without a controlled amount of pushing force on the tools there'sno accuracyin yourtesting. That's a pretty big mistake to accidentally make.
How do you account for 5:27 8:05 and 8:33 then? Luck? As with all testing here we also do 3 runs and show median on screen.
@@TorqueTestChannel okay i rewatched and stick with my original comment. You were holding two different tools horizontally that have an major weight difference between tools. Without a jig to hold the tool weight horizontally and a controlled amount of force being placed on both tools. This test could go whichever way the person conducting the test wants it to go.
Well we have the data to show that's not true (pushing as hard as we can vs holding it normal) otherwise we wouldn't have made the 1st air hammer episode. But everyone in the comments is a physicist after all, so feel free to disregard
I was wanting to know about this because I don't have a big enough air compressor for an air hammer thanks
Can I send you my new Craftsman RP impact driver to compare to others? It’s boasting gen 2 like beans. From my view it seems like their made in USA one, just significantly cheaper. But i could be wrong. Part number is CMCF813B. Boasting 30% mo powa baby with just a 1.5ah battery, even though craftsman doesn’t sell a 1.5ah battery…..lol 30% based on 3 deck screws into 4x4 pressure treated wood vs CMCF800 (which is the giant brushed impact that sells for $129 vs new RPs $79.)
While I don’t have any SDS tools to send you to test, I’d like to see both the larger 2718-20 and the smaller (but not too small) 2912-20 tested. The 2718-20 is 1 3/4in, and advertises 8.1ft-lbs per blow. The 2912-20 is 1in and advertises a fine 2ft-lbs, but 4,800bpm. Would really like more coverage on rotary hammers!
You really need to start sending the tool companies a bill for doing their testing and evaluation for them.
I've used my SDS drills to hammer ball joints and pins and stuff out plenty of times in a pinch when having to repair a vehicle or trailer while out on the road. It usually works.
I've looked around SOOOOO many times for a cordless electric "air hammer" (for lack of a better word)
there's a DEFINITE demand-i can't even TELL you how many times something has gotten 'tweaked' at the track, or I run into a minor clearance issue on a wheel/tire or suspension component vs body/unibody support/ sheetmetal seam while out racing or doing a shakedown... Like 90% of the time, that kind of powered hammer would fix it in like 2 minutes max, with nothing more than *MAYBE* a jack, a stand, and a strap...
Instead, currently I'm stuck either towing the vehicle on a trailer or having someone follow along in a chase vehicle, and pack out a generator, compressor, and air tools... If I don't haul or have a chase vehicle with the needed tools, the only option is to suffer and resort to jacking the vehicle high enough in the air, pulling the wheel, and removing enough various OTHER components to get enough access to the problem area, just to be able to hit it with a dead-blow or sledge.
The vast majority of the time, I much prefer to just toss a few essential tools into the vehicle in question, and then take 5 minutes once I arrive to set up a little pit area, simply because it's so dang CONVENIENT... My normal "essential tools" pack-out I always bring with already HAS a few batteries and a few electric tools (impact driver/impact wrench/inflator/work light/ect), it would be as easy as tossing the hammer and a few bits into my kit- it would save SOOOOO much time and effort!!!
Makita does an XGT SDS Max drill, in the UK its the HR006GZ. It says it can do a max of 21.4 J, which is more than the Milwaukee from what i can tell.
It would be cool to see that one tested to see how powerful it is, even if it would be impractical for mechanics, etc.
You brought up a good point in the possible vertical advantage of the SDS due to the weight of the tool. Id be interested to find out if there are any gains in vertical vs horizontal. I feel like they could make a purpose built compact M12 hammer, I hope that that happens one day...
They have one
hey Torque, can you test the SDS Plus to square socket adapters (3/8" and 1/2") found on Ebay and Amazon. Would be great to know how does an SDS Plus rotary hammer stacks up against an impact driver or wrench when it comes to torque and it it would be suitable for driving/removing bolts and lags. Thanks
was using a Hilti TE-1000 (40lb electric breaker) this week at work to get out a siezed 3" pin. Was more just to shock the pin as I had a 22T bottle jack pushing it out, but it wouldn't have been coming out otherwise. I still had the TE-2000 and TE-3000 (55lb and 70lb) breakers if i needed more jam, but that would have been a quite awkward one person balancing act. These are all electric plug in models, so I don't know if they would be a fair fit in the rankings.
Hi! please can you test impact pen driver? like
hikoki wh7dl,
makita TD022D
Panasonic EZ7521
DCPL-7215
i am realy ecided to see this.
please
please
Different tools for different applications...
The large corded demolition hammers are crazy powerful though id love to see one of those on the dyno like a Bosch GSH 11 E or "11316EVS" in the US.
That's a 22.5 lb hammer and you need that weight in a demo hammer to cancel out the vibrations and to have something to weight the hammer down onto the chisel when working vertically. The GSH 11 E is especially well balanced in that regard it just has the perfect ratio between the weight and impact energy. Also this model has been engineered in the late 90s as is still one of the most popular professional demohammers. That's german engineering of the good kind.
It would be virtually impossible to work with an airhammer of the same impact energy.
FYI, ft-lbs is not a unit of torque, it's energy: pushing with a force of 1 lb, for a distance of 1 ft. Lb-ft is the proper term for torque, as in 1 lb-force at 1 ft radius.
I'd be curious if Milwaukee makes, or will make, an MX Fuel SDS. Given the MX battery, I think the weakest link would become the piston setup. I'd also be curious to see if any other the other companies make an SDS with their elevated battery platforms, like Makita's XGT platform, DeWalt's FlexVolt platform, etc. I have a feeling the hammer is an instance where the tool would benefit from a higher voltage platform, at least more beneficial than throwing more amps on a lower voltage platform, which mostly just comes down to better motor design at the end of the day.
I forget the model but I've been using the Bosch. It def handles an 18" X 1 1/4" bit with no issue. I'd be lying if I said I didn't wanna play with milukees version though. I digress excellent and unique video. Very enjoyable thankyou guys for taking the time to make it. Hope the lawsuit bullshit is going away
Impact hammers are usualy rated in Joules of impact.
The SDS rotary hammers are designed to drill rocks and concrete. The rock must chip and then turn and chip again to drill a hole. The chiping part is exploiting the low resilience of the rock (can't absorb an impact over that many Joues -tested in the lab with Izod hammer or Charpay hammer - usually to find resilience values for steels and other metals but same principle for rocks and concrete).
So in order to drill rock you need more Joules of impact than the rock can handle in order to chip each strike. Note that the hammer Joules are absorbed over larger area on larger bits, and can be losses in the elasticity and inertia of heavy bits, and in the friction in deep holes, or in the debries cushioning the blow.
So these rotary hammers are rated in Joues of impact. Typical SDS is 1-7J, SDS plus 2-10J, SDS max 5-20J, hex shank (demolition hammer) 15-100J, and then you go into pneumatic jackhammers with more and more Joules needed for harder rocks, larger bits, larger chips, preferably a chip so big that it fractures a whole slab (for a jackhammer or demolition hammer)
It is not measured in a torque figure (kinda)
the pound part expresses force and the foot expresses distance. When you put them into w=fd then you can use that to calculate energy. 1 nm = 1 joule. since 1 lb/ft of torque = 1.356 nm, the 5 ft lb figure would equal about 6.78 joules per impact
Love the mini lessons throughout your content. Y'all oughta be sponsored by Bush's or the like if you're going to have to engineer, design and build ways to test tools that tool manufacturers won't bother with, still completely unbiased. It'd be crazy cool to see a TTC rating on a box one day. 😊
This ft-lb is dropping impact energy, not turning force (force applied to the lever arm).
So 5 ft-lbs would be a 5lb weight dropped 1 foot up, or any equivalent combination of that.
Potential energy from height is equal to
mass x gravity x height
I really really want to see the sub-compact Makita SDS+'s performance(XRH06ZB), to know if it is more than just the cutest little hammer drill ever.
You forgot to include the price of a large air compressor,wiring and plumbing for air powered.... Check more of these to see if how much they lie.
With that mechanism I’d think they could make some truly small hammers which would be really dope for getting small pins out! And hear me out here… if at the end of the day both tools are being powered via air… that air is made by AC voltage in a compressor so knowing the shortcomings there you’d think in a small volume that high discharge DC could produce significantly more air pressure if they put their minds to it.
Impact energy can be expressed in ft. lbs., but they're different ft. lbs. than torque. In torque ft. lbs., the direction of the ft. and lbs. are perpendicular (the force is applied tangentially to the distance from the fulcrum), whereas for energy, they're parallel (the force is applied across a certain distance, and those figures multiplied together is the work done, which is equivalent to the energy used to perform that work). Despite having the same name, these are different units. If you convert to metric, energy ft. lbs. become Joules, and torque ft. lbs. become Newton-meters.
So I use the harbor freight snap on knock off air hammer to sink 16 and 18 gauge hot rolled sheet steel and 55 gallon metal barrel lids (for handpans ) but my problem is that my air compressor can't keep up so I have to take break constantly which makes the sinking process take forever. but from what I'm gathering these SDS electric rotary Hammer drills might have enough humph the football to get the job done and not we're out my air compressor
Am I assuming correctly?
I want to see the Flex SDS with the interchangable 1/2" Jacobs chuck. Will the Flex SDS lose hammering energy using the drill style chuck?
In Europe we have a EPTA norm. If company want to compere to competitor, must have this norm. Impact power is in Joule. I think important is also lenght of chisel sds max was much longer than air Hammers. Another think: "fresh" cold Hammer have less power than the same warm Hammer because piston is tighter.
You guys should test the Milwaukee 2” Demolition hammer if you can get your hands on one. It advertises 20 Lbs of impacting force. I have one, as well as the 1 9/16” you guys tested in this video and they aren’t even close in comparison. That demo hammer is insane, you had better be awfully committed to holding onto it or you’re going for a ride
I have the new Milwaukee 1-1/8 fuel hammer drill which I could probably lend you but I don’t feel like paying shipping from Alberta Canada hahah.
This was pretty cool to see, I never thought of using my sds in place of an air hammer. It would be cool to see how milwaukes bigger 1 3/4" sds max does for power on your dyno.
Needing a very expensive air compressor (even more expensive if portable, 5HP consumer grade compressors are feeble things) is a very good argument for using a hammer drill in many situations. Someone needs to sell SDS ball joint forks but one might be milled from another tool using a carbide end mill. I need to measure a clay spade and some scaling chisels to see if they're thick enough.
“Bigger than the hammer drill you have at home”
My guy, I have that Milwaukee rotary hammer sitting in my room, with plans to buy the Metabo HPT counterpart and maybe even the Makita XGT big boy.