I finally ordered a pair of those shorts and gave them a try. My hammer drill worked about the same, but I was able to finish the job in a fraction of the time because my neighbors kept stopping by and offering to help. Nice guys!
A rotary hammer is basically a small jack hammer combined with a drill. The hammering is completely independent from the rotation, and it is quite powerful. A hammer drill is a drill with cams around the chuck to make it bounce and "hammer" the surface you are drilling when it rotates. The impacts are much less energetic than those from a rotary hammer.
For future reference to everyone on what the difference is. Impact drilling does not cut material as regular drilling does, all the front end of an impact drill does is bash into the material to dislodge a piece which then gets cleared out by the spiral. So the absolutely primary part of this process is impact force. Which is where a mere drill has problems as they only put a small toothed disk in there that generates small vibrations, where as the rotary drill has a huge chunk of metal getting smashed along the shaft. The drill might do something with soft/small particle masonry, but the moment you reach a harder piece it hasn't got the impact force to hammer out material.
2 different tools for 2 different purposes. If you want a 1/2 chuck with hammer capabilities but are not drilling through rock often a hammer drill is the way to go. If all you are doing is drilling rock then a rotary is what you want.
Found this video while looking for a hammer drill. Finished the video, and ordered a Rotary Hammer Drill instead 😄I didn't even know this tool existed until about 5 minutes ago. Thanks mate! saved me buying the wrong thing.
This video was simple, yet very useful. I'm doing some training for work, and I'm reading up on different hammer drills and rotary hammers. Seeing you use the two tools gave me a lot of insight, and will be able to help customers more now that I've seen a demonstration. Thanks a lot.
I was looking to buy a hammer drill but I am now convinced that a rotary hammer would be a better choice for me. Your demonstration made this very clear. Thank you!
Very very very useful video. I wish more content uploaders had more respect for their audience as you clearly do. No self-indulgent waffling. Just useful information. Thank you very much.
I once tried drilling a one inch hole in a dense concrete slab with my Dewalt hammer drill, and it took me over an hour if I recall. It took me forever to get about 1-2" deep. I finally gave up and went down to a 3/8" bit and FINALLY got through, and going back to the 1" bit took me another good while (seems like a bad idea, because doing that would eliminate the pointed tip of the bit from having it's penetrating action). I can't believe the drill didn't catch on fire before I was done (I quit about every 30-60 seconds to try to let it cool off, which made the job take much longer). It still works, but I use it for smaller jobs. And yeah - that one inch bit was PURPLE when I was done. Wish I had seen t his video before I bought that hammer drill... Live and learn.
I finally calmed down after reading some "Larry Bird shorts" comments and the youtuber responding with saying his wife said he should be embarrassed for uploading this video. Some funny stuff and humor the up loader has.... With that aside, thank you very much for the comparison between the 2 types of concrete hole makers. I believe the rotary hammer is the way to go for my intended applications. Even in 2019, "vs" videos barely came out about 1 year ago. Thanks a bundle, sir.
Hammer drill: A drill that has a small impact mechanism. Useful for drilling small holes in brick, cinder block and other softer materials. Rotary hammer: A demolition hammer with a rotating bit. Useful for drilling up to 2 inch holes in hard materials including concrete, granite e.t.c.
Exactly what I needed to know--I'm going out first thing in the morning to add to my tools. The hammer drill took WAY TOO long to drill through some concrete tonight.
I was asking myself the same question and researching online came across your comparison. Thank you for adding to the collective knowledge of the internet. Extremely eye opening, seeing the difference.
I desperately was trying to drill a 3" hole in a concrete wall with a Bosch hammer drill until I gave up and went to buy a basic Lidl rotary hammer. Best décision ever.
Same experience. I bought a large corded Ryobi hammer drill and it sucked. Borrowed my electrician friends compact cordless rotary hammer and it drilled holes in concrete all day. The other couldn't do one
I would emphasize how clean the holes are. It makes a big difference in how secure the anchors are. Also SDS drills are available in much longer lengths which can be a big help for your back when drilling the floor.
Hammer Drill : light weight, compact, easy to transport to different jobs and use around the job site. Versatile - can be used for small - medium size holes (can bore large holes if you progress from smaller to medium to larger) through many different material surfaces with minimal risk to damage of home or property. Sds rotary drill : heavy, more durable, more powerful and robust - specializes in masonry/concrete drilling, good for boring large holes, over and over again. Usually used in construction work/heavy duty drilling where you need to drill multiple holes. Not versatile as far as doing more delicate or intricate, smaller holes on more fragile material.
@bahathir Thanks much for your video response. My one regret regarding my video is that I was unable to hit the aggregate that plagued me while working on the actual basement walls. When I DID hit a piece of granite river rock in the foundation wall my progress was often literally stopped until I hammered and punched it with a long slender cold chisel. My video makes the two devices look nearly equal, when in reality the hammer drill is a door stop unless drilling cinder block. Excellent demo!
Rotary hammers like magic, when I got mine I tried the 25mm bit in concrete and it it just fell through it, I had to drill a few more holes to make sure it wasn't a bad bit of concrete but nope it is fearless with concrete also it will go through reo bar just have to take it easy so it doesn't deflect but it still chews through anyway. We tried drilling hundreds of holes through the edge of some concrete to fit reo bar for a joint with a makita hammer drill and after 2 holes decided
Great comparison! I bought a Hitachi SDS 8 years ago as a treat to myself, and it's still going strong (metal gearbox, not the cheapo one). Over the years I have lent it to various friends and family, and every single one of them ends up buying their own SDS shortly after. I honestly can't understand why there are still regular hammer drills available.
Nice video, I've used both of these tools and for drilling concrete, the "more hammer....less drilling" is the only way to go. As a millwright....there were days I installed 2-3 THOUsand concrete anchors...big warehouses with many Pallet Racks...Here in Calif...all Pallet racks must be anchored for seismic requirements...(earthquakes)....the high-speed 'drills' are also good at melting the silver solder and losing the tungsten-carbide tips....
You were probably working a 10 hour day. A bolt installed every 12 seconds is still smoking, no wonder you were melting bits. Did you switch drills off or just run em till they smoked?
@@windymeadowsoxteam7783 OK, I guess I should have checked my reply better....a hundred to 200 a day. one to two boxes of 100 anchors...3/8" and I drilled them to maybe 2-2 1/2". Big BOSCH SDS roto-hammer.
Great informative video. I need to drill some holes in concrete so I can secure a post to an existing slab of 6" thick concrete. Very helpful, good video quality and narration
Wow that just settled my decision. I was looking at CPO Outlet's Malwaukee Heavy Duty hammer drill vs the 7A Rotary hammer for a bit more and was wondering how they match up when drilling concrete. Thanks a billion for the video!!!
hi. i really appreciate this video. more importantly what did you use to cut out that slab of concrete? we are looking to cut a similar opening but 18" thick.
This video is a masterpiece 👏. Exactly the information that I was looking for. I am mounting a toilet and needed only to drill two holes in concrete. I have a hammer drill, but it will not drill the aggregate . I need the holses in a certain place to line up with holes in the toilet. . I previously rigged it because my hammer drill sucks. My rig lasted twenty years, but it is leaking now. I know I can drill my holes with a rotary hammer drill. Thanks for making this video. No one else has shared this information. Great job 👏
Great video! I've spent many wasted hours with a hammer drill and concrete. Sprained my neck last time, too! Ordered a rotary hammer last night. Regular $1050 on clearance sale to $380. Cant wait to get it and save my back, neck, elbow, shoulder....
we had a company out installing a new heat and air unit, a few weeks later I couldn't find my Hilti. Couldn't say for sure that my drill left with them. I miss my old Hilti, it gets the job done. 😂
Good Day! I hope you're enjoying a pleasant one. At about 1:20 where you advise about letting the machine have a good bounce. I used to restore vintage power tools, going back to the early 1900's, and some came with original instructions. More than once the Ol' Timey Instruction authors, while writing about how much pressure to use with the machine in question, power drills, saws, and such, advised to use just the right amount of pressure to let the tool do the work, and also warned not to "Crowd" the tool. I feel pretty certain you didn't pay a pile of money for your power tool so you can get a stiff muscle somewhere while trying to Force (Crowd) the machine, and not allow it to do the work for you. This video is my first introduction regarding the usefulness of the Rotary Hammer. I like it, and believe it to be an Excellent demonstration. Thank You for taking the time to create and post it. Enjoy! ~ john b.
That's the same experience i had, the only probably with rotatory drills is that they do not give a clean hole, in other words, if you want to drill a hole all the way trough it will come out with a chunk of concrete...
Excellent video. Bought a Craftsman 1/2 in. corded drill/hammer drill thinking that I could drill into my basement and garage concrete walls. Exactly as you showed, once into aggregate, it's not going anywhere! Going to get an SDS hammer drill.
Great video comparison! Im in the middle of drilling with my Bosch hammer drill into some concrete wall to put up some shelves and have spent over 2 hours for 6 holes!! and to make it worse 3 of the holes are oversize and the bolt anchors struggles to do up tight... I need a Rotary Hammer Drill!!
Great video...wonder if you could assist this 87 year old man who wants to drill a hole in my door hinge which needs a larger screw. its an old pre hung door so through the years the top hinge has messed up with the one inch screw they installed. I want to drill a hole deep enough to get past a 1/2" wood jamb, some concrete which was made for the opening of the wall to install the door and then comes the house brick. I would need to put an anchor into that brick for the screw, I was told. Could you suggest what to get for a one time job? Thanks
If there is no aggregate in the concrete, and if it's young, and especially if it wasn't made of the harder types, then a hammer drill might work for you. The hammer drill would more likely be the tool that would be more useful around the house in general than a rotary hammer, cost you less, and be more easily found at Home Depot/Lowes, etc. But if the concrete is harder, thicker, has aggregate, whatever, and proves difficult for a hammer drill, then a rotary hammer with the appropriate bit size will make the hole you need through the concrete. It might destroy the brick if you take the bit that far, though. I like the Tapcon screws for brick or mortar. The rotary hammer will probably cost you more. Also, rebar WILL stop any carbide bit, so use any tools at your disposal, including your wit, to avoid that situation.
Thanks for the video, i have a big old makita hammer drill and i just opened up a case i had in the garage of an aeg roto hammer and didnt know the diff. They aeg makes the big makita look not soo big. These were all my grandpas tools as he was a general contractor and has since passed but going through the garage i find all sorts of tools. My makita is same size as your dewalt and the aeg is huge like your roto
Thanks im trying to drill 4 =5/8 holesto mount a harbor freight metal bender and im pulling my hair out trying to drill into the concrete i have it mounted on wood now need to go into the concrete ?
There is a big difference between 1/2" SDS masonry bits and 1/2"round shank masonry bits. There's a bigger difference between a rotary hammer that weighs and costs 3-4x as much as a 1/2" hammer drill. A hammer drill introduces some vibration, a rotary hammer applies spring loaded impacts. A 1/2 hammer drill is a drill that can handle occasionally drilling through masonry. A rotary hammer is the electrical replacement for a stra chisel and a hammer.
Would you help me ?? I need to drill many holes in rock to use expansive mortar, which will chip. The holes should have a diameter of approximately 1 inch and a depth between 30 cm and 50 cm. The number of holes I need to drill per day is approximately 120 holes. We will work 8 hours a day, that is, we need to drill an average of 15 holes per hour. These quantities can vary slightly upwards or downwards, without problems. I wish you could help me by answering: 1- Which electric rotary hammer should I buy ?? what is the cost of such equipment ?? 2- Is there this electrical equipment, cordless ?? (if so, which brand / model / price ???); 3- which drill should I use ??? how many holes can she make until she loses the cut ??? what is the approximate price ?? 4- Would the electric rotary hammer be able to work until it drilled 10,000 holes or would it burn / spoil before that ??? 5- Is there a store in Florida that sells this equipment ?? I thank you in advance.
You need the rotary hammer with the highest impact force you can buy in brands like Bosch, DeWalt, Milwaukee, Hilti, etc. The impact force is measured and indicated in joules; ranging from 3 to 70 and more. I guess the one in this video is got 3 or 5 joules. You need it to be corded. Cordless rotary hammers do exist, but your application demands corded tools. If you don't have access to electrical power in your site, you'll need to rent a power generator of some kind. The durability of the bits depend on the application and brand. These are big bits and are expensive. An industrial grade rotary hammer sure would make 10 000 holes, but it'll need maintenance service each number of holes. Your other alternative is to buy or rent pneumatic rotary hammers. These work with compressed air. These are the ones you most likely see in a demolition site. They are super strong, require no electricity per unit, and most likely need less maintenance. They work out of a big compressor that feeds air through a hose to each tool. You can contact your local demolition and general contractors for more help on your project. Have a good day :)
This is my second time coming to this video after a year, it was flawless last time with a hammer drill. This time I'm stuck with 3 holes against an aggregate using the same hammer drill and getting concerned with my hands getting tremors. Time to invest on a rotary hammer 💰
Has anyone else noticed the the rotary hammer is 3 times the size of the hammer drill? Sheer physics would indicate that it would go through faster under its own weight with equal drill bits, pushing or not.
In my experience hammer drills excel in drilling cinder block and brick. Whereas a rotary will either crack cinder blocks or explode a brick in half. Just got to have the right tool for the job.
the biggest difference in both is that Hammer drill uses standard chuck and rotary hammer uses SDS chuck and bits, SDS lets the bit itself move back and forth within the head. Hammer drill moves with the whole head back and fort but only few mm but the bit and chuck are solid like one piece
Good video. Nice info and demonstration. Not applicable though for the average homeowner looking to install a railing on their front porch or the weekend warrior. They simply can't justify spending $400 on a tool to drill 8 holes when they can go to Harbor Freight and buy a hammer drill for $40 that will do the job (in much more time give you). Yes the pros NEED these higher end tools for everyday heavy abuse and speed required for their application but if you're on a budget you can't always afford these workhorses. It also doesn't hurt to drop $100 on a good bit either.
Exactly, and you can drill the same hole using "regular hammer drill" just takes longer, for home use hammer drill (corded!) is BEST tool ever. You can work on wood/plastic/concrete/mix paint/cement etc. etc. etc. ONE drill regular person will ever need for most of the jobs.
Yeah, If you only use it once in your life. Once you get a tool that others need they will pay you to drill them or rent your tool from you. It's a big picture.
first off i am not trying to scare anyone i am bringing to ones attention the danger involved in dry cutting concrete or drilling it and it only takes a very small amount concrete is 70% silica that means 70% of the dust that comes off the bit is toxic and also the dangerous particles cant be seen by the human eye i was set up worked for a lic contractor probably drill 20 or so a month for a 2 years and had no idea what he was doing to us and we are stuck with nothing
jc m look, i get that today were much more informed and aware of the dangers of construction dust and debris, if someone was drilling multiple holes inside a facility, I agree with a respirator or mask but drilling a few 3/8" holes outdoors, unless your face is next to the drill bit, is a bit ridiculous to be worried about the amount of exposure, sitting in traffic on a freeway with your windows down would expose you to as much if not more carcinogens. I've been working construction my whole life, im the 4th generation in our family outfit, and I've been on a lot of jobsites. theres occasionally that one guy around that everyone stays away from who's always complaining, pointing out any OSHA violation, has a respirator on when a plumber 100+ft away uses primer or glue for a few fittings, And covers his ears on break like a madman should any unexpected loud noise occur even while all tools and working has stopped. the guy everyone has jokes on, the guy everyone refers to as an old woman. the guy that has worked for an endless list of contractors, and his reasons for leaving are always boss/ owners fault. you know, the guy that gets on everyones nerves. you kinda sound like this type
Perhaps you are being a bit apologetic for a contractor that you know nothing about and a bit unfair to jc. Is it possible that some contractors did expose their workers knowingly, or unknowingly to carcinogens? Obviously- yes!
You ever think maybe he's not directing his comment at YOU, but to the new home owner who just rented one of these tools and is planning to drill 50 holes in his ventilated basement? His comment might benefit someone, while your comment benefits no one.
It was helpful to me! Because of JC, I went and bought myself some protection and was careful with the dust. Thanks again, JC, and I hope you are doing well. You certainly don't deserve what happened to you. Joseph, you seem a bit too angry and defensive about workers who dare to complain about OSHA violations. There's always just that one pesky guy who's brave enough to speak up about his rights to the boss. Yeah, I bet that gets on your nerves! It's never the boss' fault, right? .
Eleven years later (5.26.2023) and this video is still the most helpful one I have found on the subject!!! Thanks for posting it.
I finally ordered a pair of those shorts and gave them a try. My hammer drill worked about the same, but I was able to finish the job in a fraction of the time because my neighbors kept stopping by and offering to help. Nice guys!
Fghsdjiig
Omg lol. I read this 3 times before the video actually started and I did not understand until watching the video 🤣
Need the sneaks too to really kick it up a notch
Where can I get those shorts? Nice video man.
@@brandyprice7578 KO l la
A rotary hammer is basically a small jack hammer combined with a drill. The hammering is completely independent from the rotation, and it is quite powerful. A hammer drill is a drill with cams around the chuck to make it bounce and "hammer" the surface you are drilling when it rotates. The impacts are much less energetic than those from a rotary hammer.
For future reference to everyone on what the difference is.
Impact drilling does not cut material as regular drilling does, all the front end of an impact drill does is bash into the material to dislodge a piece which then gets cleared out by the spiral. So the absolutely primary part of this process is impact force.
Which is where a mere drill has problems as they only put a small toothed disk in there that generates small vibrations, where as the rotary drill has a huge chunk of metal getting smashed along the shaft.
The drill might do something with soft/small particle masonry, but the moment you reach a harder piece it hasn't got the impact force to hammer out material.
2 different tools for 2 different purposes. If you want a 1/2 chuck with hammer capabilities but are not drilling through rock often a hammer drill is the way to go. If all you are doing is drilling rock then a rotary is what you want.
I’m drilling into an inch thick blue stone capstone so I can run a wire to a lamp. Which is best for this job? The hammer or the rotary?
Rotary always especially through brick. Some are harder than rock no kidding!
Found this video while looking for a hammer drill. Finished the video, and ordered a Rotary Hammer Drill instead 😄I didn't even know this tool existed until about 5 minutes ago. Thanks mate! saved me buying the wrong thing.
didn’t know 😆
One of the more straightforward and concise tool demos I've seen anywhere. Told me what I needed to know, thanx much!
This video was simple, yet very useful. I'm doing some training for work, and I'm reading up on different hammer drills and rotary hammers. Seeing you use the two tools gave me a lot of insight, and will be able to help customers more now that I've seen a demonstration. Thanks a lot.
I was looking to buy a hammer drill but I am now convinced that a rotary hammer would be a better choice for me. Your demonstration made this very clear. Thank you!
Depends on what you are doing with it.
7 years later and now I’m being informed enough to realize I need the rotary hammer. Glad I didn’t open the box of the new hammer drill I just got.
11 years later and you probably got best straight forward explanation I watched online. Cheers
Very very very useful video. I wish more content uploaders had more respect for their audience as you clearly do.
No self-indulgent waffling. Just useful information. Thank you very much.
I once tried drilling a one inch hole in a dense concrete slab with my Dewalt hammer drill, and it took me over an hour if I recall. It took me forever to get about 1-2" deep. I finally gave up and went down to a 3/8" bit and FINALLY got through, and going back to the 1" bit took me another good while (seems like a bad idea, because doing that would eliminate the pointed tip of the bit from having it's penetrating action). I can't believe the drill didn't catch on fire before I was done (I quit about every 30-60 seconds to try to let it cool off, which made the job take much longer). It still works, but I use it for smaller jobs. And yeah - that one inch bit was PURPLE when I was done.
Wish I had seen t his video before I bought that hammer drill... Live and learn.
drill a 1/4" pilot hole first. Then drill your !' hole. You may find it will cut your time down to 10-15minutes.
I finally calmed down after reading some "Larry Bird shorts" comments and the youtuber responding with saying his wife said he should be embarrassed for uploading this video. Some funny stuff and humor the up loader has....
With that aside, thank you very much for the comparison between the 2 types of concrete hole makers. I believe the rotary hammer is the way to go for my intended applications. Even in 2019, "vs" videos barely came out about 1 year ago. Thanks a bundle, sir.
Bud you just saved me about 150 bucks and some serious headaches. I appreciate you.
Hammer drill: A drill that has a small impact mechanism. Useful for drilling small holes in brick, cinder block and other softer materials.
Rotary hammer: A demolition hammer with a rotating bit. Useful for drilling up to 2 inch holes in hard materials including concrete, granite e.t.c.
Thank you for this tidbit of info. It really helps to understand which situation is best for either tool.
Thanks
Not every rotary hammer is meant for demolition. The smallest ones have 1.7 Joule of energy, a proper demolition hammer has 7.5 Joule and up.
Wow, wish I saw this yesterday before drilling those holes in my brick - my hammer drill took FOREVER on just a few holes. Thanks for sharing!
Did you have your bit all the way against the back of the chuck? If not the hammer won't tap the bit
You used hammer bit? Designed for hammering cant use regular bits meant for drilling wood and metals.
Great video, but those 80's Larry Bird / John Stockton booty shorts are killing me!! Lol
really tho...
hey man! it was 2011 when he did this; fashion was a whole different world back then :)
in 2011 i was 37 and was NOT wearing short shorts .. EVER ...
😂😂😂😂😂
he got a nice pair of legs - why bother?
This might be the best commercial for a rotary hammer I've seen.
But that is what rotary hammers are for, drilling into concrete.
Clive Ellis Pretty much to to extend productivity
Lol
Exactly what I needed to know--I'm going out first thing in the morning to add to my tools. The hammer drill took WAY TOO long to drill through some concrete tonight.
I was asking myself the same question and researching online came across your comparison. Thank you for adding to the collective knowledge of the internet. Extremely eye opening, seeing the difference.
I desperately was trying to drill a 3" hole in a concrete wall with a Bosch hammer drill until I gave up and went to buy a basic Lidl rotary hammer. Best décision ever.
Same experience. I bought a large corded Ryobi hammer drill and it sucked. Borrowed my electrician friends compact cordless rotary hammer and it drilled holes in concrete all day. The other couldn't do one
I would emphasize how clean the holes are. It makes a big difference in how secure the anchors are. Also SDS drills are available in much longer lengths which can be a big help for your back when drilling the floor.
Hammer Drill : light weight, compact, easy to transport to different jobs and use around the job site. Versatile - can be used for small - medium size holes (can bore large holes if you progress from smaller to medium to larger) through many different material surfaces with minimal risk to damage of home or property.
Sds rotary drill : heavy, more durable, more powerful and robust - specializes in masonry/concrete drilling, good for boring large holes, over and over again. Usually used in construction work/heavy duty drilling where you need to drill multiple holes. Not versatile as far as doing more delicate or intricate, smaller holes on more fragile material.
Yea its multi purpose.
The shorts are lit
Lmao
Pair that with romper and were set
Lmmfao
@bahathir Thanks much for your video response. My one regret regarding my video is that I was unable to hit the aggregate that plagued me while working on the actual basement walls. When I DID hit a piece of granite river rock in the foundation wall my progress was often literally stopped until I hammered and punched it with a long slender cold chisel. My video makes the two devices look nearly equal, when in reality the hammer drill is a door stop unless drilling cinder block. Excellent demo!
Counted the time for each:
30 seconds for hammer drill
12 seconds for rotary hammer
What you didn't count was the amount of force needed to push the hammer drill vs. the significantly smaller force needed for the rotary hammer drill.
@@edinfific2576 I'm about to hop in my time machine and let this fool know he should be measuring the FORCE as well!
@@edinfific2576 yeah he didn’t count that
Rotary hammers like magic, when I got mine I tried the 25mm bit in concrete and it it just fell through it, I had to drill a few more holes to make sure it wasn't a bad bit of concrete but nope it is fearless with concrete also it will go through reo bar just have to take it easy so it doesn't deflect but it still chews through anyway. We tried drilling hundreds of holes through the edge of some concrete to fit reo bar for a joint with a makita hammer drill and after 2 holes decided
I just bought a hammer drill, now I can see I really needed a rotary hammer.
Great Job on the demonstration
Great comparison!
I bought a Hitachi SDS 8 years ago as a treat to myself, and it's still going strong (metal gearbox, not the cheapo one). Over the years I have lent it to various friends and family, and every single one of them ends up buying their own SDS shortly after. I honestly can't understand why there are still regular hammer drills available.
i bought a hart 20v hammer drill
Folks who come up with designs for these tools & engineers who find ways to build them to make our lives so much easier are awesome.
2:12 "One of the best holes I've drilled!!"...slogan of the decade.
brother was surprised how good of a hole he drilled so he wanted to drill a worse one next
You can also get chisel bits for rotary hammer for removing tile.
Side by side reviews are the best. Good work
That was a very good comparison of the 2 drills. Thanks
The hammer drill is a multipurpose tool for smaller jobs.
The comparison is null
Great legs man!! And the video was super helpful too!! Thanks!
Very good and informative demonstration. Thank you.
Happy 17th anniversary on uploading this video. Over a million views! Cheers! (good video, rotary hammers are no joke)
This is exactly what I needed, just bought a house made of mostly concrete!
Nice video, I've used both of these tools and for drilling concrete, the "more hammer....less drilling" is the only way to go. As a millwright....there were days I installed 2-3 THOUsand concrete anchors...big warehouses with many Pallet Racks...Here in Calif...all Pallet racks must be anchored for seismic requirements...(earthquakes)....the high-speed 'drills' are also good at melting the silver solder and losing the tungsten-carbide tips....
You were probably working a 10 hour day. A bolt installed every 12 seconds is still smoking, no wonder you were melting bits. Did you switch drills off or just run em till they smoked?
@@windymeadowsoxteam7783 OK, I guess I should have checked my reply better....a hundred to 200 a day. one to two boxes of 100 anchors...3/8" and I drilled them to maybe 2-2 1/2". Big BOSCH SDS roto-hammer.
You're the best coach and you're experience is real
Adjust the front handle to 90 degree to the trigger handle for a better hold... the way you have it is for transportation or storage.
This is my submachine hammer gun
If you clear the dust out occasionally as you drill, it won't bind and spin on you, and you won't have to pull so hard to get the bit out of the hole.
Great informative video. I need to drill some holes in concrete so I can secure a post to an existing slab of 6" thick concrete. Very helpful, good video quality and narration
Wow that just settled my decision. I was looking at CPO Outlet's Malwaukee Heavy Duty hammer drill vs the 7A Rotary hammer for a bit more and was wondering how they match up when drilling concrete. Thanks a billion for the video!!!
oh this explained why it took me so much times to drill a hole, my hammer drill just doesn't work on concrete
As a leg fan and a leg lover, I would say that these are the prettiest legs I have ever seen.
Are you male or female ?
@@handyman7297 Hermaphrodite
This is my uncle. He's like this in real life too.
I feel so dump. I always thought rotary drill is for wood & drywall, and hammer drill is for concrete. Your video really proves me wrong.
I spent 2 hours drilling 4 little holes last weekend. Should have watched this 1st.
hi. i really appreciate this video. more importantly what did you use to cut out that slab of concrete? we are looking to cut a similar opening but 18" thick.
He most likely used a diamond tipped concrete saw of some sort
This video is a masterpiece 👏. Exactly the information that I was looking for. I am mounting a toilet and needed only to drill two holes in concrete. I have a hammer drill, but it will not drill the aggregate . I need the holses in a certain place to line up with holes in the toilet. . I previously rigged it because my hammer drill sucks. My rig lasted twenty years, but it is leaking now. I know I can drill my holes with a rotary hammer drill. Thanks for making this video. No one else has shared this information. Great job 👏
Great video!
I've spent many wasted hours with a hammer drill and concrete. Sprained my neck last time, too! Ordered a rotary hammer last night. Regular $1050 on clearance sale to $380. Cant wait to get it and save my back, neck, elbow, shoulder....
Great video. Now deciding on the rotary hammer drill. What features are good (eg blows per minute, amps, etc)
The struggles explained👍
we had a company out installing a new heat and air unit, a few weeks later I couldn't find my Hilti. Couldn't say for sure that my drill left with them. I miss my old Hilti, it gets the job done. 😂
imaslowlerner Slam a review up. They don't just go walkies.
You sound like bill paxton, anyway can we use this for breaking the concrete, how effective will it be?
It sucks when you start drilling and hit rebar.
Use a very strong magnet first to check!
HealthIsPower tks for the idea bro
or a water or gas conduit ;-)
Sky Pup what happens when you hit a post tension cable? I've never come across those
Jose Gomez it compromises it, gotta replace it.
Hammer drill is for small holes rotary hammer is for a contractor or someone who anchor things daily
Good Day! I hope you're enjoying a pleasant one. At about 1:20 where you advise about letting the machine have a good bounce. I used to restore vintage power tools, going back to the early 1900's, and some came with original instructions. More than once the Ol' Timey Instruction authors, while writing about how much pressure to use with the machine in question, power drills, saws, and such, advised to use just the right amount of pressure to let the tool do the work, and also warned not to "Crowd" the tool. I feel pretty certain you didn't pay a pile of money for your power tool so you can get a stiff muscle somewhere while trying to Force (Crowd) the machine, and not allow it to do the work for you. This video is my first introduction regarding the usefulness of the Rotary Hammer. I like it, and believe it to be an Excellent demonstration. Thank You for taking the time to create and post it. Enjoy! ~ john b.
Nice video. How many people helped getting that big concrete chunk up from your basement ?
Using impact drill for concrete drilling is like trying to cut meat with a dull knife. Rotary hammer is a proper tool for concrete and stone drilling
The rotary hammer best especially for major jobs
I personally find hammer drills work best for 1/4 and smaller holes, especially with concrete screws.
Thanks for sharing. That rotary hammer drill is a beauty.
That's the same experience i had, the only probably with rotatory drills is that they do not give a clean hole, in other words, if you want to drill a hole all the way trough it will come out with a chunk of concrete...
Excellent video. Bought a Craftsman 1/2 in. corded drill/hammer drill thinking that I could drill into my basement and garage concrete walls. Exactly as you showed, once into aggregate, it's not going anywhere! Going to get an SDS hammer drill.
Sweet video! Does that rotary have a hammer only function? I am wondering how it fairs against an air hammer for chiseling.
Great video comparison! Im in the middle of drilling with my Bosch hammer drill into some concrete wall to put up some shelves and have spent over 2 hours for 6 holes!! and to make it worse 3 of the holes are oversize and the bolt anchors struggles to do up tight...
I need a Rotary Hammer Drill!!
without any arguments, rotary hammer drill is the only way to go......
Great video...wonder if you could assist this 87 year old man who wants to drill a hole in my door hinge which needs a larger screw. its an old pre hung door so through the years the top hinge has messed up with the one inch screw they installed. I want to drill a hole deep enough to get past a 1/2" wood jamb, some concrete which was made for the opening of the wall to install the door and then comes the house brick. I would need to put an anchor into that brick for the screw, I was told. Could you suggest what to get for a one time job? Thanks
If there is no aggregate in the concrete, and if it's young, and especially if it wasn't made of the harder types, then a hammer drill might work for you. The hammer drill would more likely be the tool that would be more useful around the house in general than a rotary hammer, cost you less, and be more easily found at Home Depot/Lowes, etc.
But if the concrete is harder, thicker, has aggregate, whatever, and proves difficult for a hammer drill, then a rotary hammer with the appropriate bit size will make the hole you need through the concrete. It might destroy the brick if you take the bit that far, though. I like the Tapcon screws for brick or mortar. The rotary hammer will probably cost you more. Also, rebar WILL stop any carbide bit, so use any tools at your disposal, including your wit, to avoid that situation.
Anthony rrr
He sounds a little like Beavis.
Thanks for the info and video! I'm wall mounting a massive tv and now I know I'm going with the rotary!! Thx brother
Jimmy Lee Motta Beavis would like to drill some holes and stuff.
My hammer drill has a a round dial on the trigger. What exactly is that for? Please be specific. Thank you
Thanks for the video, i have a big old makita hammer drill and i just opened up a case i had in the garage of an aeg roto hammer and didnt know the diff. They aeg makes the big makita look not soo big. These were all my grandpas tools as he was a general contractor and has since passed but going through the garage i find all sorts of tools.
My makita is same size as your dewalt and the aeg is huge like your roto
funny how people here were aughing at his shorts, 5-10 years ago. its 2020 now and that thing is in! haha
how often are you supposed to clean the inside of hammer drills?
nice demo man a clear winner on this test was the milwaukee
Thanks for the video. It helped me to decide to spend the extra money and buy a third drill.
Okay, make that "one turns somewhat while mostly pounding, and the other pounds somewhat while mostly turning."
Thanks im trying to drill 4 =5/8 holesto mount a harbor freight metal bender and im pulling my hair out trying to drill into the concrete i have it mounted on wood now need to go into the concrete ?
There is a big difference between 1/2" SDS masonry bits and 1/2"round shank masonry bits.
There's a bigger difference between a rotary hammer that weighs and costs 3-4x as much as a 1/2" hammer drill. A hammer drill introduces some vibration, a rotary hammer applies spring loaded impacts. A 1/2 hammer drill is a drill that can handle occasionally drilling through masonry. A rotary hammer is the electrical replacement for a stra chisel and a hammer.
Wow, this is a nice lesson and a convincing comparison. Gonna go shopping . . .
Thank you!
Would you help me ??
I need to drill many holes in rock to use expansive mortar, which will chip.
The holes should have a diameter of approximately 1 inch and a depth between 30 cm and 50 cm.
The number of holes I need to drill per day is approximately 120 holes. We will work 8 hours a day, that is, we need to drill an average of 15 holes per hour. These quantities can vary slightly upwards or downwards, without problems.
I wish you could help me by answering:
1- Which electric rotary hammer should I buy ?? what is the cost of such equipment ??
2- Is there this electrical equipment, cordless ?? (if so, which brand / model / price ???);
3- which drill should I use ??? how many holes can she make until she loses the cut ??? what is the approximate price ??
4- Would the electric rotary hammer be able to work until it drilled 10,000 holes or would it burn / spoil before that ???
5- Is there a store in Florida that sells this equipment ??
I thank you in advance.
You need the rotary hammer with the highest impact force you can buy in brands like Bosch, DeWalt, Milwaukee, Hilti, etc. The impact force is measured and indicated in joules; ranging from 3 to 70 and more. I guess the one in this video is got 3 or 5 joules.
You need it to be corded. Cordless rotary hammers do exist, but your application demands corded tools. If you don't have access to electrical power in your site, you'll need to rent a power generator of some kind.
The durability of the bits depend on the application and brand. These are big bits and are expensive.
An industrial grade rotary hammer sure would make 10 000 holes, but it'll need maintenance service each number of holes.
Your other alternative is to buy or rent pneumatic rotary hammers. These work with compressed air. These are the ones you most likely see in a demolition site. They are super strong, require no electricity per unit, and most likely need less maintenance. They work out of a big compressor that feeds air through a hose to each tool.
You can contact your local demolition and general contractors for more help on your project.
Have a good day :)
@@leonardorojas1781 OK.
Thank you Leonardo for your answer.
The difference is night and day, and with Bosch Speedxtreme bits it'll drill through the rebar.
I spent 20 minutes trying to get a hole, too.
Lol I spent way longer than that
That's what she said
This is my second time coming to this video after a year, it was flawless last time with a hammer drill. This time I'm stuck with 3 holes against an aggregate using the same hammer drill and getting concerned with my hands getting tremors. Time to invest on a rotary hammer 💰
Has anyone else noticed the the rotary hammer is 3 times the size of the hammer drill? Sheer physics would indicate that it would go through faster under its own weight with equal drill bits, pushing or not.
I accidentally deleted your response. ..wonder if you could send me that link again.? Thank you
Its not the speed of the drill but the blow force of the impact on the drill bit that counts. Measured in joules
In my experience hammer drills excel in drilling cinder block and brick. Whereas a rotary will either crack cinder blocks or explode a brick in half. Just got to have the right tool for the job.
if i want a chipping function.. what type of drill should i take?? impact,hammer or rotary
What old drill is werry strong constructions for hard working Hitachi, hilti, metabo or usa and soviet models? And verry strong components have?
Ok but what do I use to demolish my old cistern? I need to see how well chisel bits work.
Rotary Hammer drills are the way to go but dang....that hammer drill is quality, the ones I've used take longer than that.
Thank you for saving me from wasting my money! Rotary Hammer it is!!!
Can you explain how the rotary hammer works please?
the biggest difference in both is that Hammer drill uses standard chuck and rotary hammer uses SDS chuck and bits, SDS lets the bit itself move back and forth within the head. Hammer drill moves with the whole head back and fort but only few mm but the bit and chuck are solid like one piece
if you want to drill little bit faster you can wet the concrete when you are drilling so that it will not over heat and die out.
OOHRAH!
Good video. Nice info and demonstration. Not applicable though for the average homeowner looking to install a railing on their front porch or the weekend warrior. They simply can't justify spending $400 on a tool to drill 8 holes when they can go to Harbor Freight and buy a hammer drill for $40 that will do the job (in much more time give you). Yes the pros NEED these higher end tools for everyday heavy abuse and speed required for their application but if you're on a budget you can't always afford these workhorses. It also doesn't hurt to drop $100 on a good bit either.
Exactly, and you can drill the same hole using "regular hammer drill" just takes longer, for home use hammer drill (corded!) is BEST tool ever. You can work on wood/plastic/concrete/mix paint/cement etc. etc. etc. ONE drill regular person will ever need for most of the jobs.
Yeah, If you only use it once in your life. Once you get a tool that others need they will pay you to drill them or rent your tool from you. It's a big picture.
first off i am not trying to scare anyone i am bringing to ones attention the danger involved in dry cutting concrete or drilling it and it only takes a very small amount concrete is 70% silica that means 70% of the dust that comes off the bit is toxic and also the dangerous particles cant be seen by the human eye i was set up worked for a lic contractor probably drill 20 or so a month for a 2 years
and had no idea what he was doing to us and we are stuck with nothing
So sorry to hear! Thank you for the advice.
jc m look, i get that today were much more informed and aware of the dangers of construction dust and debris, if someone was drilling multiple holes inside a facility, I agree with a respirator or mask but drilling a few 3/8" holes outdoors, unless your face is next to the drill bit, is a bit ridiculous to be worried about the amount of exposure, sitting in traffic on a freeway with your windows down would expose you to as much if not more carcinogens. I've been working construction my whole life, im the 4th generation in our family outfit, and I've been on a lot of jobsites. theres occasionally that one guy around that everyone stays away from who's always complaining, pointing out any OSHA violation, has a respirator on when a plumber 100+ft away uses primer or glue for a few fittings, And covers his ears on break like a madman should any unexpected loud noise occur even while all tools and working has stopped. the guy everyone has jokes on, the guy everyone refers to as an old woman. the guy that has worked for an endless list of contractors, and his reasons for leaving are always boss/ owners fault. you know, the guy that gets on everyones nerves. you kinda sound like this type
Perhaps you are being a bit apologetic for a contractor that you know nothing about and a bit unfair to jc. Is it possible that some contractors did expose their workers knowingly, or unknowingly to carcinogens? Obviously- yes!
You ever think maybe he's not directing his comment at YOU, but to the new home owner who just rented one of these tools and is planning to drill 50 holes in his ventilated basement? His comment might benefit someone, while your comment benefits no one.
It was helpful to me! Because of JC, I went and bought myself some protection and was careful with the dust.
Thanks again, JC, and I hope you are doing well. You certainly don't deserve what happened to you. Joseph, you seem a bit too angry and defensive about workers who dare to complain about OSHA violations. There's always just that one pesky guy who's brave enough to speak up about his rights to the boss. Yeah, I bet that gets on your nerves! It's never the boss' fault, right? .