How to sharpen drill bits in 5 seconds. Ancient secret!
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- Опубликовано: 16 дек 2023
- How to sharpen drill bits in 5 seconds. Ancient secret!
What to do if the drill breaks down. Check it out in this video!
Tips lntelligent #sharpen #drill #bits
![6 Practical Drill bit Sharpening Hacks !!! [Subtitle]](http://i.ytimg.com/vi/dpPmYYexQJ8/mqdefault.jpg)
![6 Practical Drill bit Sharpening Hacks !!! [Subtitle]](/img/tr.png)
you should retitle your video HOW TO MAKE AN AGLE GRINDER ATTACMENT THAT IS USELESS AND DANGEROUS number 1 cut of grinding wheels are to be used on the edge not on the face
SO HOW ARE PEOPLE SUPOSED TO BELIVE WHAT YOU SAY WHEN YOU DONT KNOW HOW TO USE A GRINDER PROPERLY AND THATS FINE IF YOU WANT TO ATTEMPT TO SHARPEN DRILL BITS THIS WAY ALL GOOD BUT DONT POST A VIDEO SAYING THIS IS HOW IT IS DONE WHEN IT IS NOT HOW TO SHARPEN DRILL BITS CORRECTLY AND YOU ARE SHOWING PEOPLE THE WRONG WAY TO DO IT ARE YOU GOING TO TAKE RESPONCABILITY IF SOMEONE IS INJURED WHEN THEI CUT OF GRINDING DISC FLYS APART AND TAKES THEIR EYE OUT OR WORSE STILL IS KILLED BY COPPIEING YOUR VIDEO
Thank you, it works very well, I used 2 blades for safety when grinding on the surface, also I adjusted the speed of the angle grinder. Please try it
@@tipsintelligent2605 I sharpen my bits like that all the time only without that nice guide that you made thanks.
Very smart side grinding on a cutting disc. Even smarter to do it without a guard in place. Tune in next week for ancient methods of facial reconstruction surgery.
Ah yes, the ancients passed this down through the millennia. Their electric power tool knowledge was immense.
I can see only 2 problems:
1) it is very dangerous
2) the drill won't cut
Correct!
So... to sharpen the drill bit, you first need a sharp drill bit to drill a hole into the metal guide first. Sounds like you need to set this up before the drill bit gets blunt, otherwise you can't actually make it!
I am thinking the same thing.
@@jeffharper7579 or just acquire the sharp bit and use that to sharpen all the rest? like we're only allowed a quota of bits in the tool box?
(p.s. keep voting liberal/democrat and that could happen, they are the ones want to regulate regulate regulate)
😵 some of us can only afford one drill bit😆.
Won't work. Won't create proper clearance angle behind cutting edge.
Yep. I was going to say the same thing
You are right!
THIS
But he far eastern click bait machine keeps liking our comments, I have now started blocking any channel like this, even ones i haven't even watched. Sick of it.
Using a a cut off wheel to grind is very dangerous alongside the lack of guards.
an appropriate measure of caution addresses that. NO excess pressure on the bit, dont need to anyway, just shaving a fraction of a mm to restore the sharp edge. also regarding the guard, at times they are the SOURCE of the safety hazard, like a skill saw where the guard wants to 'flop down' and interfere with the movement of the blade.
in all cases however SAFETY GLASSES OR DO *N-O-T* proceed.
and no helpful kids allowed either.
end result save $100s in replacement bits and time to fetch them.
BULLSHIT I've never had ANY covers on ANY of my grinders and I've never had a problem in 25 years ..even my 7 inch grinder with a big 220mm alliuminium cutting blade like a skillsaw blade no cover or U can't do anything or cut accurately ....U can't see down the blade to keep it sq..imna mechanic and custom fabricator .
@yodad4776 i also remove guards as soon as I buy grinders, pneumatic cut offs, etc. They always get in the way and dont protect as much as some seem to think. Ive been using tools, with "safety features" removed on a daily baisis for 40+ yrs without any issues.
I couldn't drill the hole for the bolt, because none of my bits were sharp enough
Just like the maker of this video….
I was thinking the same thing....
there are places called hardware store you can 'invest' in ONE brand new SHARP bit and use that in the process of sharpening the rest.
or stand in the corner for being a idjit.
@@daskritterhaus5491 Recognizing sarcasm is not one of your strengths, is it Zeke?
As the drill cut through the metal after it had been sharpened, the metal coming off the drill bit were in small flakes. A properly sharpened drill will create two continuous curls of metal. I agree with the comments that what the video shows is both unsafe and ineffective. There has to be both rake and relief angles ground for the drill to be truly effective.I have been hand sharpening drills, between periods of sitting in my armchair, for over half a century.
Correct. To my memory it's called clearance. Yes he got a chisel point but the way he did it didn't allow for travel through the material
Exactly. Thank you!
I've got a bunch that need sharpening, let me send them to you!
@@richardlamm4826 Richard you really are a dick. People post gr8 new inventions not realizing some of us are tradesmen with many years experience. There is a lot of ways to sharpen a drill bit for a variety of applications
When I was apprentice i was taught how to sharpen a drill. I did it on an offhand grinder.
Take it to a wheel grinder and 'eyeball' it. My dad was a master machinist for 60+ years and this is the way he sharpened end mills, drills, knives, axes, lawnmower blades, etc. and they came out perfect.
That is what works for me. At one time I wasted money on a Drill Doctor - worst thing I ever bought. I learned to get a sharp drill on the grinder without removing much material.
@@debluetailfly I bought one of those things and it never really worked. I wonder if it was a broken one that someone returned and was just sold again until it stayed out.
@@josephastier7421 Mine did a somewhat decent job on large twist drills. Smaller sizes were a disaster. They would not grind properly when set up according to instructions, and I read the instruction over and over again. They kept coming up with newer models that were supposedly better than the one before. Of course the first model was supposed to be the pinnacle of drill sharpening! It would also grind a lot of material off, removing far more metal than necessary, and making the bit too short. Freehand works much better, and I no longer even use an electric grinder. I got a vintage hand cranked grinder that turns much slower, and so removes just enough metal to make a new cutting edge.
@@debluetailfly I had a similar experience. It only started kind of working once you got above about 1/4", even then it was hit or miss.
I am with you - except for end mills.....
Do it on a bench grinder, start at the edge and turn the bit slightly whilst lifting the point or dropping the end to keep the rake angle.
ok man
Don’t turn the drill, the flukes need to be flat and at the correct angle. If you turn the drill you remove the clearance.
@SmaxChristopher1 try it. it preserves the helical rake angle. Without a slight turn the heel will be proud.
Yeah there's no back relief....
This is the correct way and the way all experienced professionals that I have worked with do it.
How does this idea get the back clearance of the cutting edge? Also, those discs are NOT meant for pressure from that side. I wouldn't use this method
that's why he puts two discs in.
@@richardsimpson3792 And if the first one still breaks while you are grinding the drill bit on it? The amount of discs you put on is almost irrelavent - they are still not made to be ground on the sides
@@johnnichol9412 You can put as much pressure on as you like but the drill bit is restricted how much forward it can move by the drill tip touching the discs. Think about the action used when you sharpen a drill bit freehand. As you grind the back clearance, you drop he front of the drill bit down. This setup doesn't allow for that
This is BS. You are not creating any clearance from the cutting edge.The only way to sharpen a drill is to do it by hand on a small "off hand " grinding machine. Normally two wheels,one coarse,one fine.
I use a vertical belt sander. Makes a nice smooth straight surface. And I can put a split point on it by using the edge of the belt
Yep, my thought too, and yet they like you comment anyway ! Just more far eastern click bait garbage clogging up the internet.
This method wouldn’t sharpen a drill bit unless the angle iron closest to the cutoff wheel was elevated about 5°
Still won't work. Unless it's on the face not the side of the wheel.
"Sharpen" can mean the bit becomes 'sharper' as opposed to 'sharp'. 'Sharper' is probably good enough for 90% of actual cases.
Still nice to do it right...
Great idea
Yes, It is nonsens to sharpen a drill this way😅
or 7 degrees
When you use the word "bro" you show how smart you really are.
What You talking about Willis , Bro Plasma Blood
This is NOT safe practice. The cutting disc is not meant to be used in this way. It might well shatter.
Ok man
I agree.
@@tipsintelligent2605 No, it's true. That is NOT what a cut-off wheel is for.
That won't sharpen a drill the heel has to be lower than the cutting edge
It seemed he was twisting it as he was sharpening it. I guess that took care of it, and he showed it worked. I didn't understand how he was twisting it.
@@dimwitsadvocate6264 The method used in the video is incorrect. The sharp cutting edge of the bit has to be higher (sticking out further) than the trailing edge, otherwise it won't drill properly without forcing the bit, which can cause it to break.
@@my3dviews Well you know more about it than I do. Thank you for your explanation.
@@dimwitsadvocate6264 You're welcome.
When I worked at Irwin the extra long twist drills had to be sharpened by hand.
But they had a mandrel the bits fit into that would swing up and out in one motion that gave a general purpose grind.
Later working in a machine shop I learned the different grinds for brass, aluminum, stainless and so forth.
All done by hand.
I got to where I could change the diameter of the hole by 1-2 thousandths by the angle of the grind.
The tolerances were really tight as we were making triggering mechanisms for bombs. Out of cast stainless steel.
? Can't grind brass or aluminum
@@georgekimball2792 He meant that the DRILL has to be ground at a slightly different angle for each different material.
So you agree this isn't a very good "ancient secret" portrayed here I assume.
bona fide
This is so ancient the Egyptians were using it over four thousand years ago 😂
I knew the Egyptians were advanced but I did not think they had steel bits and electrical grinders and drills
The Egyptians were too smart to try this method
The dinosaurs tried it but then realised that the drills tasted better blunt.
RUclips told me to be respectful.. how can i respect someone who can't sharpen drills, and clearly doesn't understand how a drill actually works?
Technique is so ancient it predates guards.
Also you can't sharpen a drill bit, like that. It won't create a proper cutting edge as it won't have a proper relief angle. This is why proper drill sharpeners are cammed
Just use a bench grinder. You don’t need a fancy gauge and can simply eyeball the angle and get a sharp cutting edge. A self taught welder showed me this many years ago. I touch up drill bits all the time because in less than just 20 seconds I’ll have a bit like new.
More Clickbait to advertise something
Why do so many people take the guard off angle grinders? Over the years I've seem a number of very serious injuries and one fatality caused by shattered discs when the grinder is used without a guard.
The same reason some places can produce goods very cheaply. They have low/no safety standards.
@@carpballetyes, but this guy appears to be in his own workshop. I don't get it.
@@robinmarwick1982 Darwin hasn't gotten there yet
@@georgekimball2792 natural selection with an angle grinder 😂😂😂😂 love it.
Guaranteed trip to hospital! I wonder why we have bench grinders and guards on tools.
"Misinformation, Endangerment, Great potential for harm."
Ingenious 😊. Must take precautions as disk if shatters will cause grevious injury
Ingenious until you try it.
Grinding on the side of a cut off disc is dangerous, also your system creates a flat sided point with no rake angle which stops the drill from cutting correctly. There are no secrets to drill sharpening. You can either do it, or waste time inventing junk.
It's a good thing that people were doing the same thing in Ancient times.
No relief angle.
The 120 degree angle of the hexagonal nut is incorrect and will introduce flaws to the drill.
Don't do it this way.
Great idea for on-site quick sharpening...Machinists would not like this method however, they'd probably maintain the angle at 118 degrees also. Not enough clearance angle either. To correct this the piece of angle extrusion bolted to the grinder needs to make an angle of approx 12 degrees to the wheel...but how will you grip a small drill say 3mm?
BTW Aside the dangerous method, the lack of relief might be ok for drilling brittle plastics.
Ignore the final shot of the drill drilling. This method won't work. The drill material immediately behind the cutting edge needs to be backed off. ie. removed to give some clearance. Otherwise the drill will just rub.
It's a useful idea for getting the correct angle, though.
Great video, thank you for sharing.
Thanks bro
No back clearance…the drill support needs to be set at an angle. Just do it by hand on a bench grinder…safer and better results.
Congratulations, you just took the temper out of the steel drill bit and risked your eyes and maybe your life in order to ruin a drill bit instead of buying a new one. Well done.
Wrong. It is a HSS drill not high carbon.
That was really freakn smart..!
Dangerous way to make drill bit snap. Learn the right way.
Tbh, I just sharpen by hand and eyesight on a bench grinder and never had any issues
Yeah...the ancients are no longer around because of unsafe power tool operations, like this.
Dangerous practices throughout.
I'm not sure why this doesn't work for others. But bearing in mind obvious sharpening rules for drill bits this works like a charm with the perfect angle. Thank you for posting, this is so simple but genius.
Correct It will get you a good angle on each flute assuming it is centered so one gets a round hole, but it doesn't give the bit any relief though. I've got one of those Drill Dr. sharpeners that does the same thing AND centers it, but not enough relief so I have to grind that in afterwards. Still does a nice job pf sharpening though.
Two problems I see:
1. Removing the guards and using a thin cutoff wheel in this manner is very dangerous, should the wheel shatter. At the very least, use a thick grinding wheel for this.
2. The heat generated by grinding at the end of the bit will probably ruin the temper, resulting in the bit being softened and losing some cutting ability/lifespan.
Just freehand it on a grinding wheel. Practice until you get good.
That's what I do.
Been doing it that way for years but it’s very hard to get right unless you’re an expert. Which I’m not.
This is like a $10 jig at harbor freight with a benchtop wheel grinder.
This is exactly how the Romans did it.
I think I would do the same principle here, but use a bench grinder instead of a cut off tool. I sure hope you were wearing at the least some eye protection! Also be sure to make sure you take off the same amount of stock on both sides of the drill bit to prevent drilling oversized holes. This can done by using a scale, measure point to point on each side of the drill bit.
Do it on a bench grinder, start at the edge and turn the bit slightly whilst lifting the point or dropping the end to keep the rake angle.
It does establish a close angle of 118 deg. And anyone who understands drill point geometry knows the need to relieve the back edge so lighten up and give the guy a break ,it does offer a fair solution…measure the cutting flute length even…and it will drill close to size even if you flat chisel the relief or add helical relief ..the drill bit will cut
thanks bro
Popular method in ancient Rome.
Video should be saying HOW TO LOSE AN EYE IN LESS THAN 5 SECONDS, easier to go out a buy a new and still have both eyes
no
Fiction, this is definitely fiction.
RUclips Please mark as such.
If sharpening a drill bit was this simple, then everyone would own a cheap, simple device that works like a pencil sharpener to grind the tips of their drill bits when they get dull...and without the risk to life and limb this method offers.
I use 2 blades
I free hand mine on any grinder, on coarse 40 grit get flat edge by rapidly moving bit while grinding
ok man
What makes me laugh is yt are quick enough to shoot down your comments if unpalatable but will show a potentially dangerous way of doing something that has been recommended by others. Always about the money😂
Thats not a secret. that there is wildly dangerous. stop suggesting people risk extreme self harm
$100 for a drill bit sharpener from the took shed has a diamond blade and I've had it for about 6-7 years now ..perfect angle perfect center
Don't try this at home folks. He's using the wrong type of angle grinder blade for grinding on the side, they can explode apart if used like this.
There is no clearance, great for drilling brass sheet but no good for anything else.
Wrong. A zero rake angle is useful for hard brass, not a zero clearance angle.
That was the longest 5 seconds the world has ever known.
that was Moree like 2.05 min not .05 seconds
Longest 5 seconds in history...
🇺🇸
Awesome !
Me gusta el video
Thanks bro
The disc shattered and I lost both eyes.
Thank you, it works very well, I used 2 blades for safety when grinding on the surface, also I adjusted the speed of the angle grinder. Please try it
I noticed in the final few scenes, the drill point had been thinned, no mention of how this was achieved.
This video wants taking down before someone gets hurt coping this dangerous way to try and sharpen drill bits, do it on a grind stone made for the job, not a cutting disc.
Clever but you did not deal with the edges of the drill bit. That's where the skill lies.
This system won't create any relief behind the cutting edge.
Agree,BS,the cutting edge should be higher than the back shoulder.Good way to get correct angle,but it will be blunt.
Нужно делать спуски, помимо заточки режущей кромки. При правильной заточке сверла стружка идёт сплошной завитушкой.
Берете сверло, ставите шлифовальный диск в болгарку и вручную затачиваете, после сверлите металл. После 3 сверл понимание придёт.
Thank you, I use a hand drill
take a new unused bit and use for comparison to sharpen free hand you can get fairly close.
Im afraid the nut on the spindle was back to front. The recess should point toward the disk.
Not if you're using two discs like he was. Two discs together create a hollow just like a full grinding disc. Hence they need the other side of the spindle nut to keep the additional disc centred.
Yes, and the ancient people also couldn’t read instructions that say to never put two cutting wheels on a grinder, and never use the side of a cutting wheel for removing material.
lets make something blunt with a relief angle- sharp without one = still blunt
+-
Great video!
lol...might want to check them angles again
Now where did I leave my ancient angle grinder?
Please don't use a cutting disc for grinding.its not meant to withstand the axial forces that would result from grinding.
Secondly,the 120° angle (118°) is of little to 'no importance'.The Machinery handbook says "opinion differs" about that angle.you can do the whole grinding just by eyeballing it,whats important to give it a clearerance angle otherwise it wont cut.experience will teach u to mke it not to obtuse nor to acute.
Thank you, I have many methods for sharpening drill bits. Personally, I sharpen drill bits without accompanying equipment. I just align by eye and get good results.
The tip here is.... Don't sharpen your drills this way.
Do it on a bench grinder, start at the edge and turn the bit slightly whilst lifting the point or dropping the end to keep the rake angle.
It looks unsafe and besides, no relief angles.
"Ancient secret!" LOL
Using the side of a disc is guaranteed trouble, poor practice.
longest 5 seconds of my life.
The retaining nut holding the discs onto the grinder should be the other way up, its only holding on a small areaat the centre of the disc, not good practice or safe.
Now show us sharpening a 5mm drill bit. That will make me believe.
ok man
I used to be an adventurer like you. Then I took a cutting wheel fragment to the knee.
Thanks dude
I doubt if they even had drill bits in ancient times let alone a grinder and discs
Unsafe as well,......
When you witness a master machinist off-hand grind a bit at a standard bench grinder. if you blink you'll miss it!!! They're so fast an accurate because they've done it a thousand times.
Would of been quicker to go buy a new drill bit
😂
As others have said, what was done in the vid does not sharpen a drillbit in a way where it actually cuts. The geometry of the cut isn't that simple. Try to sharpen a bit like this, and it's easy to see.
That drill couldn"t even drill cheese. there"s no cutting edge or following edge, iv"e been sharpening drills by hand all my working life without a useless jig like that one
5 seconds to sharpen but a half an hour to prepare. 🤔😂
Yes, the "ancients" took their angle grinder out of their toolbox along with their electric drill..........
I'm a Scientific Instrument Maker by trade with secondary trade qualifications as fitter and first class machinist, and I can say this method will not work, is unsafe (downright dangerous actually, because it requires side grounding on a cutting disk). In particular it will not provide the required clearance angle behind the cutting edge or provide for other point angles if required. Careful observation of the drill after allegedly sharpening by this method shows a clearance angle which was not present immediately after grinding. I can only conclude the author is lying and actually ground the drill using an offhand grinding machine to provide a clearance angle after the alleged method was used. All in all I this video should be taken down as a dangerous inducement by an unqualified person for others to be severely injured. Do not use this method!
I watched this praying nobody would be killed.
Wunderbar!
How to sharpen a three dollar drill bit. Step One: Spend one hundred dollars on tools.
Ancient. Yeah the Egyptians used slaves to generate the electricity to drive the angle grinder they found near the stargate.
Ancient secret! If you consider last Tuesday ancient.
a smart man would use a lock washer