High-Speed Video INSIDE Impact Wrenches: How They Work

[@TorqueTestChannel]

Other Popular For Science Episodes! Impact adapter losses: kzbin.info/www/bejne/paHIfIqHYteYqq8 Gas powered Milwaukee: kzbin.info/www/bejne/ZonLlnmhrNughas Heavier sockets = more power?: kzbin.info/www/bejne/p4fHaXWua6Z0h8U Losses from impact extensions: kzbin.info/www/bejne/jorEp5-AjsRogdU NASCAR Pit gun: kzbin.info/www/bejne/n6HbiaWuaZiLqKs Power difference between 1/2" and 3/8" = WTF: kzbin.info/www/bejne/n6K4dKWtmtJlgsU

[@jay-od7kh]

hi so Milwaukee and Ridgid use the same parts ??

[@TorqueTestChannel]

@@jay-od7kh Sometimes, not often interchangeable.

[@doordye6503]

I'm just here to say it's not about speed when it come to auto machine I only use power tools to take nuts and bolts off.. they dust collector in my tool chests.

[@rychagovsacha2432]

Здесь юбка ььжуйл ль ььж! *Б Ведь Д😊ш

[@laernulienlaernulienlaernu8953]

I love channels that invest the sweet, sweet KZbin bucks back into things like high speed cameras, giving us even better content 👍.

[@TONYSTARK-jh2wu]

True now maybe you should invest into the Chanel (merch) because I bet they'l love it

[@laernulienlaernulienlaernu8953]

@@TONYSTARK-jh2wu I can only afford to press the like button! 😂

[@TorqueTestChannel]

@@laernulienlaernulienlaernu8953 That's more than enough for us!

[@DreStyle]

There not many

[@twintyara6330]

A high speed camera is worth about three lifetimes

[@ashkanmahouti858]

I’m so amazed how the hammer feature doesn’t wear off quickly

[@deadplaya]

get a Ryobi and then you'll find out how fast it's done

[@l337pwnage]

You mean wear on the hammer surface? It's easy to control with electric designs as the motor is only going to put out what it puts out. (Well, unless you're like me and wonder what happened when you put 120VAC to a12 DC motor, lol) Air designs you could theoretically over-speed, but most air systems are standardized. You mostly run into that problem in hydraulic powered tools as small changes in flow make big changes in power.

[@projekpat86]

Id make a new 1 at work myself , those tig welds on the 1 look small but clean ,probably robotic

[@quillmaurer6563]

Fascinating stuff there. I recall in my high school physics class the teacher explained how angular momentum could be conserved in elastic or inelastic "collisions" of rotating shafts, but I could tell he was having a hard time finding any examples of this - here we have it! Now planning to become a high school physics teacher myself I anticipate I'll show some of these clips to my future classes. Another cool thing about the physics here is that some of these have the hammer bouncing back rather than simply stopping - that actually increases the momentum transfer as there is greater momentum change (going not just to zero but negative). And the spring doesn't just push the hammer forward, it stores energy then will spring the hammer forward potentially faster than the motor.

[@Pwnulolumad]

This comment should be pinned .02

[@233kosta]

For your brighter students, I'd introduce energy methods for solving collisions. Basically, the "torque" you get out of this thing is actually rooted in the kinetic energy stored in the hammer and dumped through the anvil. This one isn't conserved, there's plenty of waste going on, but enough makes it to the shaft to be very useful. Anyway, since everything is basically a spring, you can store energy throughout the whole system just like when using a spring. The relationship is linear as well - it's just Hooke's law. Where things get interesting is what happens once static friction is broken. Whatever energy is left after tensioning the entire system up to its point of either yield or maximum allowable static friction has to go into causing "permanent" rotation or deformation. Showing some of the high speed video will demonstrate how every hammer blow adds just a little bit of rotation to the fastener, which gets smaller as the video progresses due to more energy being required to overcome the static friction holding the thing in place. This might be a good introduction to energy methods for impact analysis, should any of them wish to take up mechanical engineering later on.

[@screwsnutsandbolts]

Brilliant video ! 👍

[@Crewchief227]

This is the best video you've done. Although being a 25+ year mechanic I've never fully understood an impact until this video. Thank you

[@ELDIABLO444]

Very true !!!

[@benmiller5015]

Great content yet again which is to be expected from you guys. This explains n shows what the different hammers n anvils are doing better than anything else out there. Thanks for all the work you guys do to bring straight up honest content to us, the consumers

[@mattsmith6828]

I know to come here for impact wrench reviews. Look at just how passionate this guy is. I'm very impressed!

[@-tr0n]

This is the best informative video on impacts I've ever seen, really appreciate it! Personally I run air whenever possible. Easier on the hands, faster, and much more manly vroom vroom. Cordless is great when there's no air available, or you're inside of a bin, etc.

[@3nigma.3nc]

They're actually getting better than air..

[@-tr0n]

@@3nigma.3nc anvil speed, torque vs weight, reliability...

[@foojub6907]

@@-tr0n cost too

[@Callelle6251]

I love these videos, especially the slow mo, and getting inside and seeing things work is what drives me to want to learn more.

[@CalebsCars]

Why does this channel not have a million subscribers. Dude you’re killing it

[@honchoryanc]

Not many people like us left, Starbucks crowd is taking over.

[@CalebsCars]

@@honchoryanc I love Starbucks but I also learned to wrench on stuff as a kid. This is incredible we get this type of info and content for free

[@svn5994]

@@honchoryanc Today's stupid comment goes to… You.

[@svn5994]

World's most overused comment goes to Caleb.

[@CalebsCars]

@@svn5994 don’t understand but thanks for piping in

[@devonpenner7177]

The algorithm brought me to your video, I had ZERO idea this is how impacts operated. I've had my milwaukee impact for almost 7 years, abusing it every day for work. Seeing how it uses a rotational hammer and anvil is even more surprising since it's still kicking to this day haha great video🤘👌

[@russtuff]

I really dig this sort of content, and appreciate you're not using clickbait titles/thumbnails.

[@FarmCraft101]

Very cool to see these in action. Thanks.

[@TorqueTestChannel]

Thanks FarmCraft! Enjoy what you do as well!

[@TorqueTestChannel]

10 seconds old and 10 likes? You guys are bananas

[@16v15]

Keep up the quality/interesting work, and just wait 'till you see what happens when you get to 1MM subs!

[@deletdis6173]

You're the best

[@deletdis6173]

I'm no psychic, but I smell a ProjectFarm collab in the future.

[@af099]

kzbin.info/www/bejne/roLdooGkjKxlZ9U 8:42. forgot to remove editor notes. Just fyi

[@TorqueTestChannel]

@@af099 haha we dont have an "editor". That's a card telling you we're clipping the footage to save you 20 seconds of me just flipping the Milwaukee from forward to reverse. An example of how something that took 0.5 seconds is 20 boring seconds of a slow moving thumb :P Did spell "forward" wrong there though, like a real smart guy.

[@PleakeCrions]

I have known kinda how an impact wrench works, but my goodness did this show me so much more of the inner workings. Amazing work! Loved the video

[@cowthedestroyer]

Great channel i always pull up these videos to put down some erroneous claim from a co worker like and im not kidding you. Bosh is just as good as Milwaukee. Dude said it with a straight face and still stands by it for every tool they make even though i pulled up some videos of your of bosh getting obliterated by everyone.

[@BattlecatRed]

WOW! I always wondered how these impact drivers worked...very informative and entertaining! Incredibly well-done!

[@moeszyslack4676]

Incredible video, probably the best one out there showing and explaining this topic!! Very, very thankful for this! You all are doing God's work! I've become a subscriber.

[@facochr]

Retro-engineering is just the best science ! Disassemble and understand its operation is so satisfying to me ! Ty for this one, wish you the best !

[@finallyitsed2191]

Once again, I learned something new. I never even thought about the mass difference between the air and cordless hammer drills before. I will say, however, for screws and even some mechanic operations, the cordless impact is much more convenient, but I know when to bring the big guns (air) out.

[@siriosstar4789]

Fantastic video. Super clear explanation and video , with a pleasant non rambling speaking voice , a rarity on KZbin . here's something interesting you might not have heard of . In Germany , where i live , i had a log style house built six years ago and noticed during the construction of some structural beams that the workers were NOT using impact wrenches on large screws . They said it wasn't allowed . The reason being that the impact action tended to ream out the holes in the wood when the screw is being installed .

[@233kosta]

Yeh, that makes sense. These things aren't exactly torque limited (like yonder Makita drill, for example). They deliver a fixed amount of energy (per ugga-dugga). While the screw is going in, that energy goes into driving said screw a little bit at a time (but many blows each second). Once the screw is fully seated, that energy still has to go somewhere. It's not like the torque-limiting clutch on the drill, where a bunch of spring-ball detents just let go (though that makes a similar sound), this is a big hunk of metal spinnamathingin' like crazy one moment and coming to more or less a complete stop *through that screw* the next. Where wood is concerned, when it can't cut it'll just shred.

[@YardworkWithJohn]

When I first bought my house, I used to frame walls and things with a hammer and a bunch of nails. Then I discovered impact drivers and construction screws and now framing is my favorite job to do! I have an electric, corded driver and its so good at sinking construction screws into 2x4. And every screw pulls things together more and more. Unlike hammering nails where you are tightening the one you are hitting and loosening all the rest.

[@SamusLink27]

I just watched your video about torque loss while using adapters and immediately recognized the love of the scientific method. No surprise the second video of yours I watched openly discuss the "for science" ethos you have. Love it, thank you so so much for making this information available to the world. This is very special work you are doing!

[@gregoryhelton6646]

This has become one of my favorite channels. Great content guys, keep it up!

[@fz0gtg]

Great job on the video! A point of clarification when speaking about fastening, dynamic torque refers to a fastener being driven at a relative speed while in continuous motion. An impact tool by design drives the fastener with strikes and pauses which requires the fastener to overcome static friction each time, stealing a portion of the applied energy away that was intended to developing the clamp load needed to properly secure a given joint. The up side to impact tools is that they reduce the reaction force felt by the user allowing for for higher torques to be achieved without the need for torque reaction devices! When joint loading accuracy is of the utmost importance a DC electric fastening tool is the tool of choice as it tightens in a truly dynamic manner! Lastly, we can limit the negative impact of the variation in friction of a joint by using a torque + angle tightening strategy as it relies less on applied torque and more on mechanical rotation to drive the fastener!

[@ianloyd6384]

I would’ve like to have seen the paint lines on all sockets also during the super slow mo (just to see the normal rotation of the socket vs. the hammer/dogs rotating)

[@LarryBeyette-o1r]

This is the kind of content that deserves to get paid for. Useful and not trash that any loser can make like 99% of the rest of the content out there.

[@ErCanEverything]

This is a very cool video👏

[@triiad4811]

Love this channel, between this and project farm it really gives you the foresight to get the best for you money keep it up guys

[@ericquinn8578]

Thank you

[@MrLambo0905]

This is the best/most important youtube channel in existence. You should do an episode on 1/4 drive ratchets. Snappy 72 vs Gearwrench 120XP vs Harbor Freights finest vs Amazon's top rated!

[@edwardcalvert]

This is an excellent video and when I was 21 years old and in junior college and taking engine rebuilding we got to learn how an impact wrench works. This video goes into great deal on how it works and gives one an excellent illustration of how it works. Thank you.

[@kevinsellsit5584]

Superb display of how these actually work. As an ASE Master Mechanic with over 30 years' experience, I still use shop air except for interior and 1/4 drive work. I love my Mac Racing 1/2 inch twin hammer air guns which are about 20 years old now. Even with hard daily use they only need seals and anvils about every five years. While other tech's use battery power almost exclusively, I drag the hose around for two primary reasons. #1 The air is there and it has zero (0) effect on my commission. Shop air is expensive for the shop, but free to me. I've never asked the boss to buy my batteries, but I'm sure someone has and they still don't. New batteries work well with daily cycling but they still run out of power a lot compared to the compressor which has a worst case down time of 1 day every 15 years. #2 Extreme and unforgiving power. In the real world, we don't use the recommended 90 PSI. That air hose has 130-140 PSI. I know when I put a massive socket on my gun and put that socket on the front crank bolt of a Lexus, two things will happen. The gun will leave unless I hold on very tight with both hands and the bolt will come out. It always works. Awesome video!

[@mrdumbfellow927]

This makes me realize something. Sometimes after running an impact the anvil is stuck and won't turn till I hit the trigger again. That is probably when the hammers have slid on top of the dogs on the anvil rather than just engaging. Always wondered what caused that bind!

[@LTVoyager]

I will take my air tools any day when in the shop. When in the field, the cordless tool are hard to beat. Horses for courses.

[@dertrueforce110]

You really do have to see a hammer-drill in action to understand it, it seems. I tried the wikipedia page on them, and it didn't click until i watched this. Thanks for making this video. I learned something today.

[@Mastr-Tech]

I love how you don’t just show us videos but you teach us as well.

[@sizosimelane]

Phewieee!!! I rewinded - fast forwarded - repeated - played backwards and I still have no idea what this impact wrench does, but it sure looks cool.

[@TheNoisePolluter]

Thank You!!! Very clear and understanding informative video!!!

[@LawpickingLocksmith]

Thanks heaps guys! Your new high speed camera looks the best of all I get to see on youtube. Staying put here for your acquisition of a F1 hammer!

[@willr69420]

*Because... SCIENCE!* *You consistently put out awesome videos! THANK YOU!*

[@dethangelishere394]

thank you for showing me what is inside my IR air impact. it was really neat watching it work in slow motion.

[@hogsworthhammer9211]

This exposé has real impact. Awesome.

[@Sekib_Nave]

Didn’t think I would be using a torque test channel video to study for my AP physics test, however this was surprisingly useful

[@cenlaaerialimagery6291]

Your attention to details is outstanding!! Thank you very much!!

[@whydahell3816]

I like learning about what I'm using. Half of the science made sense to me. Thanks!!!

[@tontoscout9974]

Brilliantly Explained. Thanks

[@nick_riviera]

Mind blowing!🤯

[@dillonchamberlain]

This is why I love the internet

[@pfsantos007]

Never knew how these worked. Subscribed. This channel completes the other one I like - Project Farm.

[@elbenitoderocko3167]

THANKS for Showing how it Works, nice. Greetz from Germany

[@suhelsidat4328]

You deserve a subscription for for you dedication, if it wasn't for you, I wouldn't have ordered 7 impact wrenchs for my workshops.

[@danielmcgee813]

As always great source of content but I do have a suggestion for science. If the three-point system has an issue making consistent impacts and the two-point systems work reliably enough in the small platform impacts. Then would it make sense to remove half of the two point system to lower the impacts per minute but greatly increase the torque output

[@danielmcgee813]

Just a note obviously you will have to balance the hammer so that the device does not try to kill itself before the video ever gets made

[@danielsmith-ze3wy]

Well power is out here so great timings on video

[@kmonnier]

I do trim carpentry, but I love this channel! Great to watch with my boys.

[@HnrPram]

So clear explanation about how the impact works... 👌🏼😁

[@benjaminshields9421]

I love the scientific approach and dive! My only gripe is that you described what was going on in the impact driver using force and not impulse. Regardless of the similar name, I understand force being more easily understood by a wider audience, but it does not describe best what's going on. The force imparted by the hammer can only be as high as the force returned by the load. The force coming from the load end is what is responsible for the measurable acceleration (the hammer slowing down). However, it is much easier and, honestly, more intuitive to analyze momentum and impulse, or mass times *velocity*.

[@debbiekarn626]

It so cool and how it works. Thank you so much for showing how it works

[@Alberos]

Ok, now I know why it's called "impact" gun. It literally impact the bolt. Thanks, now I just learn something new even though I don't do any DIY stuff and don't own an impact driver.

[@gazaziho]

You did a great job by explaining the way how these devices work .a trillion thanks

[@PhillyFixed]

I would like high speed camera footage of money flying out of my wallet buying tools based on the results of TTC tests ... Very interesting and informative vid!

[@nickcampbell3075]

Im glad you covered the pros of air impacts. The young generation seems to view air impacts as obsolete and don't even bother buying them. Smaller, less vibration and quieter impacting, which impacting on certain things like a loader bucket for example really resinates through a shop and pisses everyone off in the shop, meanwhile the new kids hammering away on it for a minute straight on each bolt with his high torque Milwaukee

[@carpediemarts705]

So much more politely spoken than Ave. Can't be everything.

[@williampollock1274]

Whoever came up with this is a Genius!😯

[@gernhartreinholzen3992]

I wish all power tools would have see-trough shells. That would be cool.

[@m.n.2523]

Thanks for this very interesting video. I had no idea how an impact driver works. Now I know what I should look for before buying one.

[@_Everyone__]

This video made a big impact!

[@theduder2617]

THANK YOU for showing the twin hammer design in action!! I use the IR 2235TiMAX and have been curious about it's basic hammer function but had no interest in opening it up. Listed at 1,300 ft lb max torque, and 1220 IPM, it is a lightweight beast.

[@linasouza6771]

LOVELY & BEAUTIFULLY EXPLAINED, THANKS BRO

[@ELDIABLO444]

I'm not impressed easily, this video of information is simply amazingly informative as much as I know about mechanics etc I learned much more about impact devices that I've always wondered about !!! All the best to you and yours Sir.

[@carstonhendriks8634]

First time watching any videos from this channel, but I wanted to tell you, job well done! I thoroughly appreciate the meticulous detail you had explaining this. I'm excited to watch all your other videos! Definitely liked and subscribed!!🤜🏻🤛🏻

[@BLVINEOCKERMVN]

I used impacts in refineries and I never realized they worked that way. Great video!

[@JackdeDuCoeur]

Learning the whole different theory of operation with cordless (or corded for that matter) over an air tool was cool. Nice work

[@justinjones5288]

This channel needs more subscribers

[@VergilArcanis]

this helps me understand my tools better. thank you

[@pauloconnor7951]

Very Knowledgable !. i'm impressed. And thankyou .

[@TomsLife9]

I'd say that forward force induced by the spring is a good thing, if you're driving screws it can help keep the bit in the fastener

[@deepveinthrombosis6529]

it’s nice to watch videos on things I will never afford, just watched a video on bread and that was fun

[@mmyc5680]

Amazing video! Impact drivers: incredible engineering.

[@takeshi1242]

The power of physics! What engineers put together is amazing

[@Monkey_D_Luffy56]

Another day that I got curious on to something and someone can explain it clearly Thank you 😊

[@mrt864]

Simply awesome Sir. I love videos like these.

[@kylej4258]

You make great videos, very interesting and educational, also puts these companies claims and advertising to the test which is good for us i.e. their customers. Keep it up!

[@aprilialover125]

Have you gotten a hold of the F1 pit gun yet??

[@TheMrRatzz]

Another awesome video from this highly professional channel. 👍🏼

[@YFPO2D]

I finally seen the inside of a drill I’ve been using for 7 years straight !!

[@Linkman95]

perfect video, i've been trying to figure out what exactly an impact gun "is" exactly. its a drill that changes to whacking when it faces resistance.

[@avnut5517]

Wonderful video. Congratulations on the high speed camera purchase. Should be able to have fun with that.

[@Thepriest39]

Very interesting. I have wondered for some time how an impact works. I have used them for over 30 years.

[@NuisanceRacing]

Great video as always!

[@notconnected3815]

Very professional! It's really a lot of work to create a video like this, I appreciate it. Thanks very much!

[@ianloyd6384]

Gotta love cutting up power tools.. um, for science! 🙌🏻

[@gunsnwater2668]

Nice explanation and use of high speed camera.

[@agostinodibella9939]

After seeing this video, it’s amazing these tools last as long as they do! Those parts take a lot of abuse!

[@xenaguy01]

I'm always fascinated by how you can put them back together again.

[@Queteimp]

What a good video. Top Quality of info and analysis.

[@jallen8740]

Thank you as always

[@dc5723]

Great video! I love my Snap-on and IR air impacts but also love the convenience of my Milwaukee 2767.

[@Timmo821]

Cool, interesting to see that it is such a violent mechanical process