The Infamous Egg-Beater Impact Wrench! Testing & 10,000fps Slow-Mo 

We're being required to trim 1 min of the video out @ 7:56 due to background music copywrite claims. So there's less slow-mo shots than we originally included, sorry for that.

usually you can unscrew the tip on a car 12v plug and there's a small fuses inside. probably why it failed so quick!

I've never seen one that works like that before. It's quite reminiscent of an elevator's overspeed governor. I wonder if it uses the classic motor used in so many Chinese power tools - and therefore possibly replaceable if it lets the smoke out.

I would love to see a big ass brushless motor on this thing

Something that’s worth noting: the force those jacks are capable of varies drastically with how far through their stroke they are. From almost none when fully collapsed to much more when close to maximum extension

i had a impact like this that looked like a ray gun. i payed $10 for it at walmart and it lasted for almost 16 years before it failed. i used it on scooter cvt belt drives because you could get the variator nut off without any struggle and not needing somthing to hold the variator in place like you needed to with a normal impact

Sweet! I saw TylerTube test this and I was super curious to see the internals. It pretty much works as I expected... but interesting to see nonetheless. Channels like theis is what makes RU-vid great.

Harbor freight used to sell an impact that had the same mechanism for about $25 that looked more like a traditional impact gun in style. It was fantastic for pulling flywheels off of motorcycles, but definitely not made for frequent use. I'd say it had about 10-30 tires changes worth of life in it before something broke, but it is indeed great for roadside use. Unfortunately, as they've been clearing their shelves of the cheaper and sometimes odder tools they've dropped their version of this.

It's definitely a handy kit to have in the car. I could see some of the name brands coming out with their own down the line for 3x the price

I was hoping to see one of these! Thanks for all the work put in to these videos, it's very much appreciated for a filthy casual like me who can't afford to try out various brands' gear to see if they fit my needs. Side note, whoever designed your TTC logo did a fantastic job, beautiful piece of graphic design!

Better than nothing! Not bad at all considering it's design. The first one I've tried many years ago quit literally after the first hit, so I considered it junk from that point on. If time isn't a factor, not bad to have one for the car. And no batteries to worry about forgetting to charge. You have changed my mind on these quirky impacts. Thanks again for a good video! 🐺🔧

I've got one similar but it's much bigger and quite heavy for its size and has the handle on the back like a small jackhammer. Quite powerful as it takes a 30A fuse inline with the battery clamps. It will loosen nuts and bolts that my air impact won't come close to moving,great for those 4x4 wheel nuts that the shop does up with a million pound impact every time i get new tyres.

Honestly this thing seems really well designed! not well *made* mind you, but the engineering is on point. it does exactly what it needs to do, makes the right sacrifices, and results in a working and low cost product! Great stuff

I'm sold, I've ordered six of them for my kitchen staff. My cakes and baked goods have never been better.

Great Job Sir. I'm highly intrigued to see this... I helped someone who was on the side of the road... so he already had the wheel off, which kinda made me think "Really?????" But, whatever, we threw the spare on, hammered it down, and I told him "Follow me to my house, we will recheck everything..." At the house, I was shocked to see the lug nuts were over spec.... when you hold them, and run them, they feel like they are made out of processed compressed scam nuggets.... but for no good reason, they seem to work....

@singlecams convinced me to get the DCF899 back in the day, great channel with practical use cases. The egg beater taking on a Honda crank pulley bolt is something to behold!

I've been subscribed to Singlecams for around 5 years. This machine uses the same physics as when a batter swings the same but hits a dinger off the handle of the bat or a home run when contacted on its sweet spot. The additional mass involved gives it a perceived advantage.

You read my mind. Been watching Singlecams videos on these things. Thank you.

After this review, it gained a lot more credibility, atleast for me. It's the kind of tool that you don't use very often but you'll be glad you have. Would be a good idea to put one on the wife's car.

Great video, once again. I'd love to see a mid-grade shop impact like this, ~$120 that takes an M18 battery with max torque rivaling big 3/4" impacts. I don't need the big guns very often, but would be glad to have something like that sitting on the shelf.

Am I the only one who wants to see how effective this hammer assembly could be with a much more powerful motor behind it?

Singlecams has great channel! Been watching for quite awhile. Nice to see this impact on the dyno, it's comical but spicy

I’d imagine just like any centrifugal clutch that adding spring pressure will delay engagement to a higher rpm and doing so should see some gains! Especially if combined with a better motor or just over voltage

I wonder if you gave the motor more power (18v? 24v?) if it would hammer any harder or will the blows be the same? I'd love to see a video of a suped-up version of this thing (more power to the motor, stronger springs so the mass reaches higher speed before engaging with the shaft) I could see this thing competing with the mid range impact drivers.

I bought a 12V impact beater gun from Harbor Freight about 20 years ago and yes it did remove that Honda crank bolt without breaking a sweat. I paid $27 back then and included 4 lugnut sockets. This thing works better than any air impact that I've owned Including an 18V impact gun from Bosch. Bosch is not the beast, the impact beater gun is for a fraction of the cost.

Once again thanks for the awesome content! a modified version of this impact with a stronger motor, heavier "flywheel" that releases the "hammer blow" at higher rpm would be really interesting to see. I imagine we are starting to enter the wrist breaking territory, so a better handle is recommended :P

You should replace the springs with slightly heavier ones to get it to spin up to a higher RPM. More powa!!

The hard-hitting science that I come to this channel for!

Loved the video! TylerTube kinda tested this thing, and now it’s been truly tested! Keep finding more oddball tools to test, maybe we’ll find a odd gem like this again. 👍

I love this channel. The oddball stuff is always exciting to see

Awesome you guys put this out, I saw one of these on another channel and I was debating getting one for my dad. Glad to know for the investment, it's good for emergencies. I wouldn't trust my life on it, like it's not a daily driver but for replacing a tire once in a blue moon, sounds like it could be handy.

That hammer design is pretty ingenious in its simplicity. I'd love to tinker with something like that. Increasing the anvil weight, increasing spring tension, using a better motor. Also interesting to note, you can see that sometimes the lever rocks backwards and catches on the hammer as it is knocked back, that raises a couple of questions for me if the mechanism could be adjusted to make that controllable that might give some great loosening ability to the mechanism, first off the motor wont have to fight against the reverse inertia in the assembly to spin it back up, secondly, that reversed impact hit could provide a slight wiggling action to the nut/bolt as its going to be wiggled slightly back n forth every hit. Only thing I'm not sure of is how much energy going into the hit in the intended direction, if we're talking like 9:1 that would be acceptable but obviously anything that gets closer to 5:5 is just going to be net neutral.

i have one of these "single use" 12v tools, but its an air compressor for tires. i've actually used it quite a few times over the years, and i've careful not to let it overheat. if you let these things run wild though, they will hit pretty hard and then melt into slag lol

I have had one of those for over 10yrs. I hadn't used it in a while, and it froze up. I took it apart, and it works good as new. They are definitely a big help especially if you go to a shop that uses an impact and over torques the lug nuts.

One of my cars came with a similar impact wrench, though it's a bit more "gun shaped". The previous owner was a bit older so he used it to help with the winter tire changes :D Don't have the car anymore but I did keep the little gun. It came with a nice combination sized impact socket and damn if it doesn't work...

Fascinating! I bought this type of lugnut removal tool back in like 2005 and sung it's praises for many years as I was able to help multiple people with flat tires, including myself once. The Achilles heel, however, seemed to be the cold. I noticed it worked a lot less - or not at all - when it was very cold out, which unfortunately is fairly common in Minnesota. But it served me for more than a decade before it stopped working one day.

i have been waiting a long time for this one :D

That's definetly cool! I bet your wrists felt wonderful after testing it all day, so your pain is appreciated. Now... could you by chance upgrade the snot out it please?

Love that you grabbed one of these..I'll hang on to my m18 mid torque for now lol..thank TTC

I saw a video a little while ago featuring that gem. That is interesting seeing what makes it tic. The new camera gear was worth it for sure. Great job

Great video as always! Thanks.

It would be neat to see one of these things modified via gear reduction to a hand crank. A hand powered impact wrench. For you know, replacing carriage wheels after the EMP event hits and there's no more electricity.

Seeing yall test the swench would awesome

Totally unexpected. Nice work!

Bought the Harbor Freight version of this back in 2006 and its still going. Ive used it a couple hundred times, paired with alligator leads, going to a 18v lithium battery. The oem plug used a low amp fuse, which I replaced. This was the only issue I had.

You guys are doing gods work

I had an older more pistol type of one of these I kept in the trunk as a tool of last resort, slow, but it hit surprisingly hard until it let the smoke out. Took out more than one bolt where jumping on the breaker bar didn't.

That does seem pretty uniquely suited to emergency and junkyard duty if you don't have big cordless tools. Seems pretty creative. I was initially guessing it was tightening some kind of spring until it couldn't anymore.

Omg waited for this one, thank you!

Thanks for doing my suggestion from last video! These little impacts are strange!

These impacts first appeared about 20 years ago - the Shentai. I bought one ($AU70) and it got me out of a huge problem in the outback. I blew a diff pinion seal and needed to replace it. The impact easily removed the pinion nut, and enabled me to replace it plus about + 1/64th turn. Worth it's weight in gold. It will also undo rusted exhaust flange nuts that need 2 long extension bars to reach, where the bars absorb all the torque of a normal wrench. This was before the days of the Li battery powered tools we now love.

I used a similar 12 volt floor jack as a outboard motor lift on my old 40 Mercury. Heck of a lot easier than manual lifting it. Nice work guys.

We absolutely appreciate you my brother! 👌

glad singlecams got a shoutout. great channel

Great Vid I have been waiting to see this type of impact reviewed I just didn't know what it was called !

Since it's for a car, if the engine is running it would be getting 14-15 volts and maybe an interesting test

I always assumed these were complete junk. Now you actually have me interested in one. Damn you TTC for making such fantastic content. Also, would be super interested in you guys testing tire inflators like the digital one that Astro makes. I've always used the Astro one, but recently it got broken and I'm back in the market. Matco's $170 price point just doesn't seem worth it, and can't help but wondering if there are better options out there.

This was cool! It would be awesome to see someone make a homemade egg beater impact that’s on a 20v or 24v battery that does double the rpm!

Finally an impact driver for the kitchen, my souffles will never be the same again

The egg batter design makes a lot of sense for its intended purpose.

I have had one similar for years and I love it have not had one lug nut that it has not been able to undo.

Thanks for covering the egg beater. I have the same scissor jack but I modded it to take my impact wrench. Zips the car up or down fast. Good for working on cars if u need to support weight quickly for engine or trans. It's not very strong, not for hd trucks. I think their motorized jack is ok 🤔 impact is much faster 😆 yea I think the egg beater will remain a curiosity. It is capable and surprisingly so. But I think I'd get a lot more mileage from a regular cordless impact.

That’s actually really cool, super cheap for emergency purposes or just an overall cheap option but it still has its place

Cool! I figured it had to be some sort of centrifugal clutch to account for its sound & behavior. Not sure if I want one of these per car, or if I should just loosen & retorque the lug nuts every so often to make sure they can be removed with the usual wrench should the need arise.

This is the first time I've seen the egg beater (I'm a welder/fabricator, if something needs beans I open the oxy/acet tanks in my back yard) - I'm really impressed

Wow that is interesting. I wonder if there are higher quality or name brand versions of these style impacts.

Idk how I missed this upload because I’ve been hoping you’d test this thing!

Thanks for testing this kind of tool at last. Long ago I challenged a RU-vidr to send his into TTC in the comments, but he declined.

I’ve actually mod mine when I was in college I had no money to buy a 18v branded impact but still want to work on my car/bikes So I got a old car starter motor swap out the original motor in the tool use it with a adjustable power supply set to 14v and it works great It only takes one hit to crack loose a normal car wheel nuts (tq to 120nm)

Very intresting thanks!

this definitely sounds like my jam fellow geeks, subscribed

I picked one of these sets up a few years ago and use it twice a year to switch between summer and winter tires. I live in a apartment and this box is all I need to do it in a parking lot. I am using a torque wrench to tighten though.

Okay this is some very clever engineering 🤯

Haha been waiting for this for a while. Nice!

The Egg beater icon on the graph and "uggas..... Then duggahs" too funny 😂😂

The way this works reminds me of one of those big electric impact wrenches ("el-max" we call them) used for removing lug nuts on trucks.

Honestly for and older lady or man this is perfect, some people are fully capable of changing a wheel but lack the strength they once had. This is perfect for them

For more than a decade I’ve had the old Harbor Freight Chicago Electric version known as 12v Emergency Roadside Impact Wrench. I used to have two but one broke on me when I had to use it last month. My DeWALT impact driver broke the impact-rated socket adapter with a single blow too. When I eventually got them off I found that some genius had put well over 1,000 pounds of torque on the lug nuts, ruining the studs. I used my DCF438 cut off tool to make strategic cuts to the blow-molded case so that it now fits my CMCF940 impact and CMCB206 battery like a glove. It also fits my DCF899 impact though the DCB205 battery isn’t quite as secure (needs a foam shim). Point is: These things break. “Emergency use” is the right terminology. The light would still come on but it would not turn and it smelled like it was burned up. This was after about 40-50 seconds of letting it hammer shortly after 30 seconds of hammering on a different lug nut. I bought my first one to use on my motorcycle… specifically for removing the countershaft sprocket while powered off the bike’s battery. It worked like a charm for that and came in useful for a few roadside spare installs over the last 10 years.

Definitely interested to see how these spin up Impact's work

Ill stick with my 4 way and my small floor jack. (one of those little 2.5 tons floor jacks that has the 2 foot handle or so) It is however nice to see that this stuff does actually work.. mostly as intended.

This was really neat! I might need to chuck one in the trunk of my car, now that I'm getting old and decrepid... not that my car has a place for a spare tire anyway...

Interesting to see what else is out there that truly works.

I wonder about a higher voltage, or a brushless motor and also maybe changing the springs to accommodate a faster rpm before each impact. Great video!

Wow, great design, both of them.

i lifted a 8500 pound boat with the trailer with one of these jacks. Thought we fried it on the 6 or 7th lift but it turns out it was just the fuse in the cigarette lighter! Fuse fixed and im still using it 5 years later. 10/10 best impact + jack car kit that exists. period.

very interesting design, would be cool to see a premium brand make one of these to see the potential when real money is put into it

I had something similar 30+ years ago. I had never used an impact wrench before but my friend's dad had a really nice Porter Cable impact wrench (back when they were top-of-the-line), so I wanted to get something for myself. As a broke 15 year old I found one but didn't realize at the time it worked in a similar manner to this, spinning up to speed and then hitting. It seemed to get weaker and weaker after each impact. I never got it to break anything loose. I borrowed my friend's and it hit for maybe half a second breaking loose everything the other one had trouble with

Cool I just made a video on a Chicago Electric from 2002 it works just like this but looks like a normal air impact shape. For as cheap as or feels surprisingly packs a punch it takes alot more speed on mine before it hits. Great test 👍

Sweet cool been wondering about them things

What a clever little contraption! You'd obviously never use this in a shop unless you were tragically desperate, but it's nonetheless ideally suited to its intended task and market. Nobody wants to spend a ton of money on a beefy impact wrench just to leave it in the car for years in case you get a flat, but you also need something with enough oomph to loosen a stuck bolt. The downsides (cheap construction, slow overall action, awkward form factor) are simply not relevant for its intended roadside emergency use, and the multi-rotation momentum building trick lets them pack a lot of punch without placing unreasonable demands on the power supply. Smart engineering at its finest!

The high current draw that blew the fuse is an issue on many import 12v “car” tools. Lots of cars only have 10A on those cigarette lighters some have 15A. I have a HF “compresssor” with this issue, I put a current clamp on and measured 12A under load though it has a 15A fuse in the plug. Going straight to the battery is the solution as long as you add an appropriate fuse. That little pump is a beast.

Thanks for doing this. I was really fascinated with it and now I won’t make fun of it anymore.

I'm pretty sure that assembly is some type of centrifugal force clutch that releases when it reaches a certain RPM to hit the hammer, used to have a go kart with one of these, really interesting design regardless.

thank you friend 😊

I bought one of those electric scissor jacks, and yeah it did the infamous sideways tilt after shearing off the teeth at the bottom of the Jack

My senior citizen father had one of those, it actually saved his bacon more than once. I recommend them to older folks that can still physically lift the tire.

Would be cool to see a high quality version of this that will last longer than a week

Saw this video, had to make some coffee and sit down. It's time to see what this egg beater can do!

Those things are actually kinda cool! Now I wonder though... what happens if you but a big modern brushless RC car or drone motor (or even a die grinder) onto that mechanism? Or at least a better brushed motor, or even just overvolt the one in there (maybe improve the cooling a bit...). Also, how hard would it be to shove stronger springs in there? Would it increase the RPM before a hit alongside a higher RPM motor? Well, cool video as always!

When i first saw this, i assumed it was gonna function like any other impact but cheaper, but the way this works seems like a slower, but highly effective method of getting things done, and it makes me think of what it would be like if it was fitted with a heavier weight and a better motor so it could be priced similarly to a decent conventional impact. I have a feeling it would become great at removing rusted and very tight nuts. It would probably also become a bolt snapper 5000, but that's besides the point lol