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Milwaukee M18 fuel impact wrench: super powerful? #4103175 05/21/16 09:24 PM
Joined: Dec 2015
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Fsharp Offline OP
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So I was browsing in my local Home Depot and came across this beast of a cordless impact wrench.
https://www.milwaukeetool.com/power-tools/cordless/2763-20
It seems unbelievable. 700 ft-lbs tightening and 1100ft-lbs loosening. That's way more than a corded electric impact wrench, and more than most air powered ones.
It seems too good to be true. Anyone used one of these or have any thoughts about it?

Re: Milwaukee M18 fuel impact wrench: super powerful? [Re: Fsharp] #4103195 05/21/16 09:51 PM
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Reddy45 Offline
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I believe the specs are true. I have one on my wish list.

Re: Milwaukee M18 fuel impact wrench: super powerful? [Re: Fsharp] #4103196 05/21/16 09:52 PM
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itguy08 Offline
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While I've not used one the guys over at GarageJournal swear by it - it is that good. Most of the Milwaukee stuff is top notch and I have that one my list of things to buy.

Re: Milwaukee M18 fuel impact wrench: super powerful? [Re: Fsharp] #4103198 05/21/16 09:53 PM
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JHZR2 Offline
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I suppose you could figure it out backwards...

Hp=torque X rpm/5252 or something along those lines.

A 4Ah battery doing a 20C discharge is doing 80A x say 16V conduction voltage...

That's 1280W. Figure 90% motor efficiency, so like 1100W. So that's like 1.5hp.

What's the rotational speed when it's hammering and making max torque? 5 rpm?

So torque = hp X 5252/rpm = 7878/5= around 1600 ft-lb.

Something like that.

I'm sure it off for a number of reasons, like the hammer impact influence, motor speed, or something like that... And then Im all ears.

But the big determinant is that you can pretty well know the output of the battery, and thus the kW going in. If you opened a pack and found the fuse rating, and figured at max torque the battery is putting out 80% of that current, you're pretty close...



I do own that gun. I couldn't free seized lug boots that required me to stand on the end of a 3' breaker bar, so I'm not convinced it can really do 1100, probably more like 550-600, since me standing on the bar would be like 700ish+.




Re: Milwaukee M18 fuel impact wrench: super powerful? [Re: Fsharp] #4103221 05/21/16 10:41 PM
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jrmason Offline
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We use them at work all the time. They are a durable impact but like stated above I don't believe they put out anywhere near 1100 ft-lb.

The batteries are what impress me as much as anything. We consistently use them to bust rusty 3/4" and 7/8" studs loose (1-1/4" and 1-7/16" socket). They perform very well.


98 Ram CTD with a few goodies
01 Beetle TDI 5 speed
08 Mountaineer Premier
98 Mustang GT
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Re: Milwaukee M18 fuel impact wrench: super powerful? [Re: Fsharp] #4103226 05/21/16 11:02 PM
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daves87rs Offline
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Nice...


2020 Chevrolet Trax LS
2019 Chevrolet Equinox LS
2006 Chevrolet Cobalt LS
2004 Chevrolet Cavalier

Too much GM.. ;-)

Re: Milwaukee M18 fuel impact wrench: super powerful? [Re: Fsharp] #4103233 05/21/16 11:14 PM
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Rand Offline
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how about the similar dewalt model for 279$+tax with battery, charger, and bag.

props to some noob crackmeup on slickdeals for it

www.slickdeals.net/f/8768559-dewalt-dcf8...&p=85229431

in for one! My birthday is coming up.

DEWALT DCF899P1
Brushless motor for superior performance
Heavy-duty impact mechanism with max torque 700 ft./lbs., breakaway torque 1,200 ft./lbs.
3-speed selector switch for control
LED work light
Battery fuel gauge


2019 Jeep Cherokee Trailhawk 2.0T
2020 Hyundai Elantra "Value Edition"
Re: Milwaukee M18 fuel impact wrench: super powerful? [Re: Fsharp] #4103236 05/21/16 11:18 PM
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Jim_Truett Offline
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I have one. There are YouTube videos of it not being able to remove a 19mm Honda crank bolt. Mine took one off with minimal hammering last weekend. Using a standard impact socket too.


2008 F250 6.4 PowerStroke 52k
1963 Nova SS 84k
2008 GMC Yukon Denali 195k
2013 Mahindra 3016HST 128hrs
2008 Honda CR-V 96k
2006 Honda CR-V 180K
Re: Milwaukee M18 fuel impact wrench: super powerful? [Re: Fsharp] #4103282 05/22/16 02:17 AM
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jhellwig Offline
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I have one also. Works great but the only thing I have used it for is lug nuts and gas tank straps. Haven't really tested it thoroughly yet.

Last edited by jhellwig; 05/22/16 02:18 AM.

Sparks fly from my fingers.

1995 Chevy K2500 Suburban lt 5.7
2014 Toyota Sienna
1983 Chevy K5 350
Re: Milwaukee M18 fuel impact wrench: super powerful? [Re: Fsharp] #4103284 05/22/16 02:40 AM
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DoubleWasp Offline
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Mine busts through anything. Nothing like fasteners that have been submerged in salt water for years.


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68 Charger R/T / Supercharged 440 VR1/DBL7349
07 Ram 3500 4x4 / Cummins 6.7 /DBL7349
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Re: Milwaukee M18 fuel impact wrench: super powerful? [Re: Fsharp] #4103350 05/22/16 06:20 AM
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Donald Offline
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Originally Posted By: Fsharp
So I was browsing in my local Home Depot and came across this beast of a cordless impact wrench.
https://www.milwaukeetool.com/power-tools/cordless/2763-20
It seems unbelievable. 700 ft-lbs tightening and 1100ft-lbs loosening. That's way more than a corded electric impact wrench, and more than most air powered ones.
It seems too good to be true. Anyone used one of these or have any thoughts about it?


Its true, I have one. Its a beast. While I have not measured the torque it easily gets rusted lug nuts from trailers and my Bobcat.

It has a low setting also (very low) which I use to tighten the lug nuts. Then go back with torque wrench.

Makes the best sense when you have many M18 tools. There are cheaper places than HomeDepot (no tax also).


2015 Ford F-250 w/Powerstroke
2016 Subaru Crosstrek CVT (wife's)
Re: Milwaukee M18 fuel impact wrench: super powerful? [Re: Rand] #4103353 05/22/16 06:22 AM
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Donald Offline
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Originally Posted By: Rand
how about the similar dewalt model for 279$+tax with battery, charger, and bag.

props to some noob crackmeup on slickdeals for it

www.slickdeals.net/f/8768559-dewalt-dcf8...&p=85229431

in for one! My birthday is coming up.

DEWALT DCF899P1
Brushless motor for superior performance
Heavy-duty impact mechanism with max torque 700 ft./lbs., breakaway torque 1,200 ft./lbs.
3-speed selector switch for control
LED work light
Battery fuel gauge


It somewhat depends upon what other brand tools/batteries you have.


2015 Ford F-250 w/Powerstroke
2016 Subaru Crosstrek CVT (wife's)
Re: Milwaukee M18 fuel impact wrench: super powerful? [Re: Jim_Truett] #4103404 05/22/16 07:31 AM
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Reddy45 Offline
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Originally Posted By: Jim_Truett
I have one. There are YouTube videos of it not being able to remove a 19mm Honda crank bolt. Mine took one off with minimal hammering last weekend. Using a standard impact socket too.


Those Honda crank bolts are something else. There are too many DIY articles claiming you only need xx torque to remove it but the reality of it is...it depends.

I helped a friend with a mid 90s 4cyl non VTEC accord do his timing belt job and we had to go with a 3/4" drive cheater bar because everything 1/2" drive we used ended up bent or snapped.

I believe there is a YouTube video showing removal of one of the crank bolts and the guy had to build a custom "overkill" socket since his top of the line IR air impact wasn't cutting it.

Re: Milwaukee M18 fuel impact wrench: super powerful? [Re: Fsharp] #4103950 05/22/16 09:13 PM
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Fsharp Offline OP
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Sounds like a good tool. Too bad I don't have any Milwaukee cordless tools or Dewalt tools for that matter and the price including batteries and such can be a bit of a barrier.

I've got a pneumatic impact wrench that usually does what I need it too, but really needs a bigger air compressor than what I have.

I wish someone would put some effort into a decent corded electric impact wrench. I bet a 10 amp motor would provide at least similar power to this Milwaukee one.

Re: Milwaukee M18 fuel impact wrench: super powerful? [Re: Fsharp] #4104515 05/23/16 03:18 PM
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Rand Offline
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The one I linked included 5Ah battery and [email protected]$

now I just need a new drill. my 7 year old 24v from sams club needs a battery that I am not buying.

I can use my impact driver sometimes but not always.


2019 Jeep Cherokee Trailhawk 2.0T
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