How DANGEROUS Are Exploding Drill Bits? Hydraulic Press Test!

[@jimbergey3624]

This guys narrative is the total success of this channel! It’s freaking hilarious. Between the cheesy jokes and the hilarious accent, it’s gold. He can make crushing random things hilarious.

[@puriewhite]

Years ago I've had a drill bit explode on me while drilling and not wearing any eye protection. Couple debris went straight into my left eye, fortunately they didn't cause much damage and got easily removed in the hospital. Definitely learned two lessons from that though: always wear eye protection when drilling, as well as never buy cheap chinese drill bits.

[@bradcavanagh3092]

I'll second that. The other week I had a cheap 8mm bit bind and explode on me. Bit of a shock since I'm used to cheap bits just snapping.

[@althds7099]

@@bradcavanagh3092 *The cheap drill bits*: "you underestimate my power." -explodes

[@fredgeitner713]

I used to work with a guy that wasn't so lucky. He had a glass eye. Apparently he was drilling into a truck frame with a Chinese drill bit and it shattered.

[@leonv1553]

You got lucky Puri. As did the watermelons. Steel at that speed needs quite a distance to slow and stop. The safety glasses worked better than expected, nice! Once the end of a long piece of 5 cm wide steel banding hit my safety glasses. It put a 1/2 mm deep cut in the lens right in front of my eye. Scary! And thank you Uvex and all the rest for your quality glasses.

[@mahuba2553]

You should never buy cheap things if you know they will be used for stressful aplications

[@mc-sp8zr]

Using the drill bits to make the holes used to smash them is like making them dig their own grave

[@johndododoe1411]

Not as bad as cooking a kid in its mothers milk (if you get the reference).

[@hankatmaggies8819]

He used the stones to destroy the stones..

[@calvinmoreira4017]

This press has worked like a charm for my projects kzbin.infoUgkxajoEbapTfqWaadnqb04h6U576yxXp-FE . I didn't even secure it to my table top, mainly due to the fact that I was using a 15 lbs drill vise. It's not flimsy at all as to what others have claimed it to be. Make sure the locking nuts and levers are secured and there won't be any issues with light pressure and patience. I was able to drill through aluminum, plastic, and steel (steel took a while) with no problems at all. Yeah it took a little longer than a regular drill press, but I don't have the space OR the money for one.The instruction manual was worthless, but luckily assembling the press was intuitive. However, the manual would be good for ordering replacement parts if needed. There is a nice breakdown of the parts that are included in the kit. Before ordering, make sure it is compatible with your unit, it is clearly stated what models the press is compatible with.This was an excellent purchase for $40!!

[@IAmTheOnlyMrDaryl]

After all these years you are still coming out with great ideas

[@brainache555]

Lets say great bad ideas :D

[@TillURide420]

He should put someone’s head in there. That’s a really good idea

[@areyouavinalaff]

@@brainache555 ok. great bad ideas.

[@peterbenson2185]

And I still physically jump with sudden failiures..... Too much time working in factories, I guess.

[@CalculatedRiskAK]

This really illustrated for me how amazing safety glasses are. Protecting from a sharp piece of shrapnel flying faster than you'd ever be able to react to is pretty crazy.

[@InsufficientGravitas]

Equally impressive that they stopped pretty much all the shrapnel.

[@majicogarcia8417]

@@InsufficientGravitas Most people dont drill using a Hydraulic Press.

[@InsufficientGravitas]

@@majicogarcia8417 I know, but every single time the shrapnell went towards one of the melons it hit the glasses.

[@bigdoug7606]

That in my opinion was an excellent demonstration of the importance of safety glasses. It would have been interesting to see the damage that would have occurred without them in the same scenario. Thanks for the great content.👍

[@7531monkey]

Unfortunately, now we will never know what is inside a waterlemon.

[@sc0tte1-416]

@@7531monkey lmao that made me laugh.

[@nathanmciver6496]

Yes, unfortunently whats more important than glasses is having a home and shop for a reason so before work you have all your safety gear organised so that when you do work, your glasses are clean, you have clothe to protect from exploding objects! Wait and about that, why is safety gear so expensive?

[@asn413]

Norm Abram would definitely approve:)

[@Engineer9736]

During normal use of a drill press you don’t push on it with 10000kg, not even 10kg. I’ve never broken a drill bit just by downward pressure in my life so that’s just bs. But sure, safety glasses are a good thing to wear anyway.

[@theslowmoguys]

Can’t believe how fast the play doh shot out!

[@mysock351C]

I do believe it deserves its own episode. Can we get play doh to exceed the speed of sound with a 150 ton press? Either way it would be cool...

[@HydraulicPressChannel]

And I remember thinking before filming should I use also monochrome camera and run it with higher frame rate. But no I thought nothing that fast is not going to probably happen and I didn't use it :D And if you build same setup it's not going to never do the same thing again, that's sure. Fastest thing that I have seen from the press are really tiny particles out from exploding ball bearing, those can go around 1000m/s.

[@kotsios1234567]

@@HydraulicPressChannel You can actually recreate this with a really fine EDM cut hole on the side of a small piston which gets pressed in a pocket filled up with play doh. That would be interesting in slow mo!

[@camongaming2919]

How about doing the same thing but the drills are inside the melons?

[@X197ToPlay]

whitout daubt a collab betwen you guys would be great!

[@aivansama6265]

By carefully analyzing all the footage provided, I came to conclusion that your drillings failed because you forgot to turn your drill on.

[@jodicobb6382]

Made me smile!

[@billr3053]

Adam Savage - "Well, there's your problem"

[@godfreypoon5148]

I mean, more specifically, the speed was too low. Feed was fine, just needs a few more rpms.

[@markgordon4368]

🤣🤣🤣🤣🤣

[@onefastgmc]

I mean haven't we all done that? Start yanking on the handle to the drill press, wondering why it's not cutting, and only realizing the mistake once there's half a twist drill embedded in you chest? Like come on man, it happens to everyone.

[@ToxicSpork]

I think this also demonstrates the importance of hearing protection. A decibel meter would be an interesting addition just to see how loud these explosions are

[@danyf3116]

5:10 The cone shape you are referring too, is called, Morse Taper.

[@areyouavinalaff]

it's actually a morse taper adapter, not just morse taper. the tail stock and drill both have a morse taper but they're not a match... hence using an adapter.

[@willgallatin2802]

The larger bits had a morse #2 taper, the adapter was to go from #2 to #3 morse taper.

[@starlite528]

And we call the wood boring bit an "auger"

[@hunterws]

what is the breaker bar, that is inserted... to loosen the drill from adapter?

[@starlite528]

@@hunterws I forgot for sure, I think it's a "drift"

[@davidwootton683]

I once had a 5mm HSS drill break, and wizz past my ear. It was not a nice experience. And I was wearing safety glasses. In 40 years + I have had about 15 to 20+ breakages. Mostly drilling sheet metal. We sometimes get steel that has surprises inside. Very hard stuff that jams drill bits, and then they break. Great videos. Kind regards, and greetings from Africa.

[@orgonewarrior1604]

Do you use stub drills for the sheet metal? You can regrind your broken drills to stubs, regards from belgium

[@davidwootton683]

@@orgonewarrior1604 Many thanks fi

[@davidwootton683]

Sorry for the typo. Many thanks for your kind reply. Yes I do, to both questions.

[@akaroth7542]

Remember, drills aren't meant to always feed in hard or take a lot of pressure. It depends on what they're meant for. A lot of times in machining the challenge is finding the right tool, feeds, and speeds to preserve the cutting edges, get a required finish, and evacuate material.

[@HydraulicPressChannel]

Yep and the larger sizes take so much force to explode that I think that no CNC or manual machine can apply it. But you can also explode these by driving them sideways into the material etc. so you can get exploding drill bits while machining and I have seen many accidents with them. So wear your safety glasses and close those machine doors :D

[@akaroth7542]

@@HydraulicPressChannel and that's a fortunate thing. Hate to say it, but I'm glad I don't have to use the manuals too often. Always get paranoid about securing the work-piece and tools.

[@evog35viii]

..... I'm just here for the destruction. Everything else doesn't matter.

[@thebarkingmouse]

@@HydraulicPressChannel Have you seen the video of Kentucky ballistics with the failed 50 caliber rifle? If he had been (edit: NOT been, stupid autocorrect) wearing safety glasses it definitely would have taken his eye. As it was it broke all the bones around the eye but did not cost him his eye. That video is a great warning too. He was shooting military surplus rounds that had been bought on the secondary Market. I'm convinced that he came across a spiked round. Sometimes in theaters War would there a significant theft of materiel, some weapons & ammunition are "spiked" or set up to fail. Filled with far more propellant, or high explosive instead of propellant, to cause the weapon to fail injuring or killing the user. The manufacturer and Kentucky ballistics themselves have done a pretty decent analysis including replicating the failure by loading around with enough propellant to cause it to produce at least four times normal pressure. But they have not done the one test I would add which is to test for high explosives. In any case, safety glasses definitely saved his sight and may have saved his life because any more injuries might have been too much for him to survive. As it is you should definitely go watch that video, he had to Jam a thumb in his neck to stop the bleeding from a lacerated jugular vein. He very nearly died.

[@LordOfChaos.x]

@@HydraulicPressChannel i can confirm A drove a 50 mm diameter drill into a steel part sideways The spindle didint survive it

[@tomhutchins7495]

A very good demonstration of how important safety glasses are! And some nice crushes too. I think the wood drill was my favourite because you could see it deforming.

[@pedrowoolson4273]

Am I the only one thinking that the moral of the story is "Never forget your safety glasses"? They work way better than I expected in that crazy hoodrawlic scenario

[@billr3053]

"hoodrawlic" LOL. But I think the pronunciation may be like the German "Ü" (U-umlaut) - which is difficult to emulate using an English word example if there is one.

[@WIPEYOURLENZ]

I just use the safety squint 😉

[@romaliop]

@@billr3053 Yes, the Finnish Y is pronounced the same as the German Ü. The word hydraulic has been loaned into Finnish (in a slightly different form) and so people also tend to pronounce it in English similarly to the Finnish pronunciation ("hüdrowlick"). While the correct English pronunciation would in Finnish literation be written as something like "haidroolik".

[@robbrcnstuff4220]

Always feel like wearing safety glasses when watching this channel, I always wear them at work because I've had drills break and I like being able to see. Awesome video. 👍👍

[@purpletalons7682]

Thank you for demonstrating why safety glasses are needed. This video has made me laugh too hard. Keep up the amazing work 💜

[@benjurqunov]

I had a 10mm shatter. A large fragment struck my forehead, its sharp end stuck in like a dartboard.

[@thebarkingmouse]

Have you seen the video of Kentucky ballistics with the failed 50 caliber rifle? If he had been wearing safety glasses it definitely would have taken his eye. As it was it broke all the bones around the eye but did not cost him his eye. That video is a great warning too. He was shooting military surplus rounds that had been bought on the secondary Market. I'm convinced that he came across a spiked round. Sometimes in theaters War would there a significant theft of materiel, some weapons & ammunition are "spiked" or set up to fail. Filled with far more propellant, or high explosive instead of propellant, to cause the weapon to fail injuring or killing the user. The manufacturer and Kentucky ballistics themselves have done a pretty decent analysis including replicating the failure by loading around with enough propellant to cause it to produce at least four times normal pressure. But they have not done the one test I would add which is to test for high explosives. In any case, safety glasses definitely saved his sight and may have saved his life because any more injuries might have been too much for him to survive. As it is you should definitely go watch that video, he had to Jam a thumb in his neck to stop the bleeding from a lacerated jugular vein. He very nearly died.

[@osrikking8785]

@@thebarkingmouse You need a slight edit as it sounds like he WASN'T wearing safety glasses at the beginning of your explanation. Other than that, good post because I watched that as well. He fired off his remaining slap rounds (same batch as blew up that day) and although those didn't give the same result, most of them were grossly over pressured.

[@chincemagnet]

I’ve never drilled something with literal tons of pressure, but I’ve had bits explode in CNCs and industrial drill presses and they usually just break and fall apart. Although the bigger, well big for me was 10mm, did shoot a bit of shrapnel due to how hard the the downward pressure was, but nothing deadly

[@NicholasTomlinPlus]

Great channel! Good ideas too. The wood drill is called an "Auger" The conical drill holder is known as a "Morse Taper" Yes the safety glasses work but I had a friend whose retina detached after an impact on his glasses, he lost sight in that eye. So, regardless of safety glasses make sure any likely impact is likely to be very light or avoid it at all costs. Your eyes are super precious, don't find out the hard way.

[@TheAngelsHaveThePhoneBox]

1:52 "Even the small drill send really fast shrapnel so I think this is going to be a great day." Now that's a quote to live by.

[@jansenart0]

5:28 "Oi! Satana!" I recognize that from My Summer Car!!

[@andyruse7969]

As somebody who drills steel nearly every day, I found this to be one of the most interesting HPC videos!

[@djosbun]

I think you just made a Hollywood award-winning commercial for safety glasses. Mr. Watermelon would agree.

[@robertfindley921]

I used to work for a CNC machine manufacturer. Lathes and mills. I was shocked at how little testing they did. And how their software releases were uncontrolled. Customers would call up screaming about broken tools flying into things. They literally had no test team. I did my best to get them to test products before they shipped them and to control their software releases. Ultimately it was one of the reasons I was let go.

[@Janduin45]

Ah yes, the Biltema premium brand. Best joke I heard all day :D

[@yeetmcmeat]

I think putting the drill bit through a melon then crushing it would be interesting, just gotta try to not crush the melon itself. It would show how much force is behind the pieces for sure but it would probably be real messy. lol

[@SuperDantedmc]

Was just gonna mention this. Exploding shrapnel coming from within :O

[@jamesa7506]

You should have at least crushed the watermelons at the end, just so no other melons get the idea that you're becoming weak and try to invade you!

[@stinkyfungus]

Pootinmelons... You gotta keep them in line or they try to walk all over you. Put em'in the press!

[@dimitar4y]

@@stinkyfungus you vote biden don't you. you reek of "sexualizing minors is not grooming :)))"

[@robertwest3093]

LOL@pootinmelons!

[@LucasOliveira-tt2ll]

5:32 classic finnish swearing, one of the reasons I watch every HPC video

[@Average_Brad]

Would be interesting to see what things like playing cards, wood, or hockey pucks would do to "stunt produce" that is a bit more fragile like tomatoes, apples, or lettuce.

[@steezydan8543]

Hey I just had an idea; How about you put a calibrated whiteboard with measurements on it to graph the distance over time more accurately? Basically think the Mythbusters highspeed backdrops. It can't be too hard to print out a piece of paper with some black lines, but you'd have to put it at the right distance to get it to look right.

[@xpelestra]

Kinda pointless because you don't know exact angle at which shrapnel is traveling. You would need multiple camera angles and complex math to determine exact speed.

[@doclee8755]

@@xpelestra No you wouldn’t. You need only a couple simple pieces of data. The distance between the lines and an accurate clock. No complex mathematics needed for determining the speed of a fragment of material.

[@HydraulicPressChannel]

I can usually measure items from the picture and use that. For example here the drill was 100mm out when the playdoh went so it's pretty easy to estimate from there.

[@EdwardGordington]

@@doclee8755 if the shrapnel was traveling in one dimention yes, but if it travels towards the camera whilst traveling along a horizontal path it will appear to move slower due to its trajectory.

[@doclee8755]

@@EdwardGordington It still doesn’t matter. At the point of failure ALL fragments will be traveling the same velocity, outwards in ALL directions. Particle size will matter in total distance, but the initial velocity of the fragments are proportional to force applied to failure. Without getting into elastic limits and fracture points of a material with stress over strain curves, we’re talking about a fairly rough calculation for fragment velocity. They will be traveling out in all directions under the same initial force. This can be looked at similarly to explosive physics. It’s this circumferential distribution that makes it more simple by fragment velocity of time over distance. That was my initial point. No complex analysis is needed for that. We can get complex using the same analysis in the Mott’s model. It deals with fragmentation velocity extremely similar to what happens here. It’s part of detonation and explosive work. But the question was finding fragment speed after it “exploded” and was simple time and distance.

[@wyatthausman4377]

Having broken and bent alot of expensive drill bits in my career the noise they make in the video causes a visceral reaction in my mind🤣😅

[@HydraulicPressChannel]

I think I spent something like 200€ on drill bits while filming so could be lot worse :D Let's not test mill heads :D

[@wyatthausman4377]

@@HydraulicPressChannel and for HPC's final video, they press all their tools and go bankrupt 🤣

[@wyatthausman4377]

@@HydraulicPressChannel I exploded two annular cutters last week hand drilling in pitch. 180$ dollars each😅

[@ObjectFive]

Try axialy pressing the inner ring of ball bearing out. Make a tool that sits outer ring and prevents it from radially expanding and axially moving. Make a shaft that fits the inner ring and has a step that will axially push the inner ring out. Try with and without restricting radial expansion of outer ring.

[@rocco3686]

that just a frag grenade with extra steps

[@class2instructor32]

The standards for safety glasses are fairly high.

[@Aqvaris]

And what should we say about those watermelon standards? They also seem pretty high to me.....🤔🤪

[@PhilG999]

True! I always have my eyeglasses made with OSHA/MSHA/NIOSH rated polycarbonate! Just for the times I don't put on serious eye pro. I have a pair that were destroyed a few years ago. Titanium frames. Got an "object" that hit me in the left eye. Bent the frames, badly scratched the lens but didn't break it. Hospital trip and they were thinking I had broken the eye socket/orbit and did CT scan. Black eye for quite a while. Funny thing is the glasses were replaced under "Warranty" and they let me keep the smashed ones! 😁

[@class2instructor32]

@@PhilG999 WIN!

[@Willy-Wind]

@@PhilG999 yes, I never skimp on safety glasses. You can always buy goggles very cheap but I prefer to buy from a reputable source and brand (beware of knockoffs!)

[@dj1NM3]

"Morse taper" is that cone-shape on the shank of the larger drill bits and almost unsurprisingly, that sleeve is called a "Morse taper adapter".

[@andrebartels1690]

9:06 look at the sparks. Very long and orange, with yellow bursts at the end. Very tough steel with a lot of manganese (I suppose, that would be typical for drills and alike.), and a little bit of carbon that makes those yellow bursts. That stuff is a beast. Compare to a file, which has a high carbon content. Those sparks look like a firework sparkler.

[@nerd1000ify]

It's likely M2 High speed steel. 0.9% carbon, 4% chromium, 5% molybdenum, 1.9% Vanadium and 6.4% tungsten, balance iron. Hardens to 64 Rockwell C, and barely softens when red hot (it is tempered at 520 degrees C). This is the standard material for drill bits, turning tools, high quality taps and dies, etc.

[@loganthesaint]

That safety glasses strike is a grim reminder of just how much they can save your eyes from destruction.

[@stevenwithanS]

That was a good one. Go bigger. You might want to thicken your blast shield.

[@HydraulicPressChannel]

I think I have now 8mm polycarbonate there and the deepest dents were maybe 1-2mm with these so I think we are still good for size or two larger :D

[@WoodworkerDon]

@@HydraulicPressChannel Just mount the lower steel plate on the safety box the right way to prevent 'escapes'.😂

[@stevenwithanS]

@@HydraulicPressChannel Good to know.

[@1itim]

Faster camera needed!

[@Electric_Snap]

As someone who wears safety glasses daily, NEVER underestimate what you're working on. I have been to the ER getting orbital CT scans and all sorts of medical over the most seemingly innocent work all because I didn't have eye protection for brief moments. I have no doubt that my diligent use of safety glasses, during the more dangerous daily work, has saved my eyesight many times. I am sure I have also been lucky many more times.

[@nitbot]

This seems like a really safe experiment

[@HydraulicPressChannel]

Yep what could go wrong with flying really sharp steel parts :D

[@WoodworkerDon]

@@HydraulicPressChannel and the world's fastest Play-Doh.

[@tuunaes]

As safe as these? kzbin.info/www/bejne/eniceq2npZuKjbc Now that must have been world record acceleration for Tesla... kzbin.info/www/bejne/i6KynZuEpq6KjNk kzbin.info/www/bejne/nJ_TaGuBjs2Ca9k

[@stebstebanesier6205]

The shock wave seen in the last high speed camera footage, 11:55 was amazing.

[@RickBaconsAdventures]

Pretty sure that was not a shockwave and rather just artifacts from software trying to estimate frames between frames to slow the high speed video down more. It could only be seen like that there.

[@aland7236]

Another thing that might work for the shrapnel test is a balloon. You'd have to use small balloons to make sure they are full enough so that the rubber doesn't just bounce but break.

[@alan3082]

I actually laughed out loud when you were talking about the watermelon and said "but don't worry he has the safety glasses on". Hilarious!

[@Fix_It_Again_Tony]

His sense of humor is pretty good.

[@littleratbag1111]

I love this channel keeps me amused on a rainy day, when he says “and here we go” makes me laugh every time! Keep up the great work sir.

[@Kumquat_Lord]

2:43 you can see the exact moment it hit the end of its stress-strain curve. It goes from plastic deformation to brittle fracture in an instant

[@austinmarshall443]

Elastic deformation before brittle fracture*

[@billmadison2032]

Keep going with this series. I'm glad this is you guys, there's another channel called by the same name but there is no commentary. Your reactions are what make this channel great.

[@rueben225]

I keep thinking that you need to collab with the Slow Mo Guys, i would love to see these things explod-- "get pressed" in 180,000 frames per sec.

[@HydraulicPressChannel]

I try to get even more light there for next time so we can film with higher frame rates. I can get decent picture with around 10 000 fps with my own cameras so that's already plenty fast but I need more light.

[@mariusleoca7783]

at 11:54 I think the video was slowed down even more using AI frame interpolation. There are some weird movements of the shrapnel pieces and the surrounding of them which is not present in the clip right before this one. I may be mistaken but, I really thought of using this technique to further slow down the slo mo footage. Great work!

[@mduvigneaud]

A few years ago I had a small twist drill bind up in a steel rod I was drilling (the vise wasn't clamped down tight enough and the work shifted) and the twist drill exploded. A fragment hit my safety glasses almost dead-center to my left eye.

[@LordOfChaos.x]

Thats why i always wear safety glasses when doing any manual work CNC closed doors ? Nah

[@mduvigneaud]

@@LordOfChaos.x When you have the polycarbonate doors closed on a CNC machine... those are thicker than safety glasses. With manual work, always the safety glasses.

[@mikey123259]

This reminds me of the hard lesson I learned about not smacking two hammer faces against each other, I was chopping wood and had an axe get stuck so I figured I’d drive it the rest of the way with a hammer. The hammer head chipped and sent the chip into my chest. It didn’t penetrate too far but if it would’ve been my eye I would’ve lost it without any doubt.

[@MJPilote]

I have exploded 10.5mm hss drill on a machining center, it seized on stainless and the twisting loaded enough energy to the drill that it was like shotgun blast in the machine. Roughly 8mm piece hit the tempered multi layer safety glass braking four of the five layers. Same has happened with 16mm tap. And many machinist run open machines without safety shields.

[@HydraulicPressChannel]

Twisting could load even more energy on these than just pushing and bending so definitely not good thing to have happen. I think I should try to recreate that and film it on high speed :D

[@allinaday3526]

I bet that livened up your day!

[@MJPilote]

@@HydraulicPressChannel that would be very interesting to see on high speed!

[@MJPilote]

@@allinaday3526 Yep it sure was, and having face next to the glass while watcing the drilling cycle didn’t help the jump scare any.

[@tuunaes]

@@MJPilote Glass, no matter the tempering, really isn't good material for impact protection except for surface layer. Neighbour who makes and installs window glasses said that once he had put impact resistant "safety glass" (really polycarbonate with some surface treatment/s) into excavator working in quarry. Next day quarry's owner had called that excavator driver had done "emergency dive" with almost head size rock from rock crushing flying straight toward his face. Really loud bang (and propably change of pants) later they found couple cm long scratch from that safety "glass".

[@beneichinger9566]

5:09 In English it's simply a tapered drill , or a Morse tapered drill.

[@joshplayseve]

you should always include safety-glasses-watermelon guy with the dangerous presses u do!

[@Pleumel]

I had things explode on a press before and witnessed some accidents.. the explosion of the bigger drills make me JUMP out of my stool.. this is scary for me.. Be safe!!! Always make sure to be safe man. Please!

[@sou1daddy503]

I was listening to some of the awesome sounds that you get from the press and I think you should do a collab with Andrew Huang! He makes really great music with sound samples from all sorts of unexpected things. HPC sounds would make some fantastic tunes!

[@sillyjellyfish2421]

OOOOOH! I would love to hear that! Hydraulic press techno!

[@MonumentalVT]

I love the tone of amazement that the safety glasses worked… and the greater amazement, “Hey! This is educational!”

[@18ct]

I've never wondered what damage an exploding drill bit can do, but I still clicked the video to see the hoodraulic action. Pretti guuuud.

[@BimmerWon]

I learned that drill bits explode while using one as a hole puncher with a drill press in college. Luckily the lab supervisor wasn’t in the room at the time so I didn’t get in trouble.

[@peter5.056]

My cat LOVES your videos! Whenever she hears the intro music, she meows and runs to the screen to watch.

[@maggs131]

Your cone shank drills are called Morse taper here in America. Next time you blow up drill bits, get a ballistic gel hand and have it grip the drill bit as it explodes

[@jamesortega2340]

I really like this video! It was cool to see the last drill bit twisting into the metal before it exploded

[@gregoryashton]

I just got back from my first visit to Finland on an Easter break and I have to say you guys are awesome 🇫🇮❤

[@wixte]

Hey Ma, where's our 50T hydraulic press, some funny man's saying I can't do this stuff at home.

[@matthewjones7378]

The English translation for the taper in a lathe tail stock is called a Morse taper. Awesome video!

[@courier11sec]

Maybe also big worn out carbide end mills? I have always loved your channel. Thank you for doing these things.

[@du4lstrik3]

3:25 Sounds like you took some shrapnel to the gut. LOL

[@Mrgeoffrow]

@5:00 The tapered section on the larger drills is known as a “Morse Taper” in English. thanks for what you all do. Very good content

[@garykirk1968]

As someone who has had to have a piece of drill bit extracted from my eye. I appreciate this, and yes I was wearing glasses. It hit my cheek, eyebrow, glasses, then eye. Luckily it hit all those first, and I still have vision in that eye.

[@Nightweaver1]

Tools that are case-hardened and tempered like drill bits don't bend under compression, they just explosively shatter. That's what makes them so good for drilling through metal, but very inflexible.

[@Featinwe]

Best safety instruction video ever... the producer of those glasses should pay you for this video.

[@andyruse7969]

I'm amazed you were able to cut some of those larger drills with the bandsaw. They must have a differential heat treatment to make the lower part of the shaft less likely to break.

[@xm210c]

depends on the tool material too. If it's just HSS, HSS-E / HSS Co8 or HSS-E PM

[@dndcreeplord602]

Did that one bit turn red hot? God you guys are maniacs! I LOVE IT!

[@Gribbo9999]

Yes, that was a lesson for me! I will be wearing eye protection even for small hand-held drilling from now on where I might not have before.. Even a 2 or 3 mm bit exploding is clearly dangerous.

[@jimweiss]

Any time I need a laugh I come to your channel it’s becoming more frequent lately still loving your channel all these years keep them coming all the videos are funny,educational, and explosive everything a guy wants. Cheers

[@redgum1340]

I'm glad I'm behind my computer screen and not in the room with him LOL I love this guy Hahaha

[@georgeinczauskis7871]

I LOVE THIS VIDEO! I work with large drill bits daily and have had them chip or break occasionally while drilling. But this is fantastic!

[@travisnewman8374]

Amon Amarth shirt was cherry on top🤘

[@360Fov]

Deceiver of the Gods!

[@tristansphotos]

Idk if you can see the shockwave or the polycarbonate infront of the camera shaking at 11:55

[@disturbedmaynard3873]

Back in the day when I was a machinist, we were drilling a 1 1/8 or 1 1/4 inch hole in an injection mold plate for a cavity, and my boss decided to push the feed rate up (because time is money) and when the drill bit broke the whole CNC Machine moved. Not some converted milling machine, but a CNC machining center.

[@pg41226]

5:31 “satanaa perkele” 😂😂 I love your language and videos because they are so honest.

[@benorth0311]

That safety glasses hit is absolutely educational!

[@jannpatrick6392]

Nice video! It would be very interesting to see a comparison between HSS and carbide drills, what kind of force they take to brake and how exactly they break :D

[@docm3093]

That last drill slow-mo footage was very interesting! Great vids as always! Stay safe!

[@Kualinar]

Those safety glasses really did protect the water melon. Fun, interesting and instructive. What more to ask ?

[@alboinspsinaga]

"I don't like this.. but Here We Go!!" 😅

[@Cheeto_Fingerz]

Can you bring back the intro and the extra content at the end? They were always my favorite parts of the videos! ^^

[@TheBanjoShowOfficial]

The takeaway you should have is that always keep your drill ends sharp, that way you minimize the amount of pressure you physically are forced to exert in order to drill a hole.

[@murrayshekelberg9754]

Entertaining and a good demonstration of safety glasses. I would love to see a comparison of regular glasses, sunglasses, and safety glasses being hit by shrapnel.

[@peejay1981]

I once used a 2mm drill to unblock a mig torch. Just for poking, not drilling. It snapped, and a microscopic shard ended up in my eye. Had to be surgically removed. It never occured to me that I needed safety glasses to poke around with a stationary drill bit.

[@rustyudder]

It is a interesting demonstration of safety glasses. Pretty cool

[@purebredhosscat441]

the big boy drills with the cone shapes are called a tapered drill, or a Morse taper drill. I was a machinist for a while in the US. hope it helps.

[@sleeve8651]

Long story short, I was being trained (?) on a large industrial CNC Machine. The guy giving me instructions, brought a much longer drill bit back from the tool room, and told me to change it out. It was at least 2 inches in diameter, or larger ! I should have suspected something, when he immediately walked away after telling me to change out the much smaller bit with the longer one, but only being on the machine literally for minutes I had no idea as to what was about to happen ! As he failed to tell me about, " Nulling " the tool, which for the uninformed, tells the machine where the tooling is, with respect to the work, or the work table. Mind you, I was standing in front of the machine at the operators position, probably 3 feet away from the tooling ! After securing the bit in place, I reached up and hit the Run button, and nearly within a blink of an eye, the machine tried to push the drill through the work table ! Which made the bit turn to powder, with an explosion that sounded like a cannon going off, and immediately not only shut my machine down, but the entire Shop ! Fortunately myself, and the next closest fellow running a small Bridgeport were not hurt ! And the drill bit has always been a mystery to me, as I can only guess that it vaporized, and turned to powder ? We never found any evidence of there ever being a drill bit, none ! Craziest thing that ever happened while in the Machine Shop, for sure, as I must have had an Angel with me that day !

[@verdantpulse5185]

Safety glasses saved me an eye from a snapping drill. Small drill, but a scuff right in the middle of the lens from the broken end. The broken end went on to bounce off the floor, all before I had time to blink.

[@dadoVRC]

Working as machinist, I know very well how HSS and also carbide drills, taps and mills can be dangerous. I've seen multiple machines windows, made of tempered glass, shattered by exploding tools, and some colleagues had some level of injuries from them...

[@TobiasMenke]

Good that u said: "don't try this at home!" i was about to get my 50 tons hydraulic press and my 60 milimeter drill from upstairs, thank you

[@paulk8io445]

I was in trade school and a guy was drilling a 2 inch hole using a lathe tail stock. He was rolling nice heavy chips out of the cut. Another student walked by and tapped the drill bit on the side as it was cutting. And it exploded with a loud bang. The drill was fine with the torsional load, but that slight shock on the side destroyed it instantly.

[@OramiIT]

In the US we would call that an auger bit. Tapered friction fit is a morse taper (like for a lathe or drill press)

[@markdavis4754]

"Who would guess that the safety glasses work?" I love that !!!!

[@GiovanniGiorgo]

Years later, this is still one of my favorite channels.

[@buzz5752]

In America we would call that the intermission drill lol

[@esc8engn]

I LOVE the safety melon with the glasses. more of that!