M12 Fuel 3/8 Impact Wrench Driver - Model 2454 - XC 6.0 Battery
M12 Fuel 1/4 Stubby Impact Driver - Model 2552 - XC 6.0 Battery
M12 Fuel 3/8 Stubby Impact Driver - Model 2554 - XC 6.0 Battery
M12 Fuel 1/2 Stubby Impact Driver - Model 2555 - CP 3.0 Battery
M18 Fuel 1/4 Hex Impact Driver One Key - Model 2757 - HO 6.0 Battery
M18 Fuel Surge 1/4 Hex Impact Driver - Model 2760 - HO 6.0 Battery
M18 Fuel 3/8 Compact Impact Driver V2 One Key - Model 2758 - XC 5.0 Battery
M18 Fuel 1/2 High Torque Impact Driver V2 One Key - Model 2863 - HD 9.0 Battery & CP 2.0 Battery
M18 Fuel 1/2 Mid Torque Impact Driver - Model 2861 - HO 6.0 Battery
M18 Fuel 3/8 Mid Torque Impact Driver - Model 2852 - XC 5.0 Battery
Changed over one car from snows to all seasons and this car was the perfect test. It has 3 locking lug bolts and 2 normal 17mm bolts on each wheel, since I divided a locking set between 2 cars. That way if needed I can test without the locking key, as its like a 3" extension. Bolts were torqued to 95 ft lbs about 3 months ago.
Easy ones, my HT is the One Key version of the 2767 Gen 2, M18 2863 HT 1/2, M18 MT 2852 3/8 & 2861 1/2 all easily took off the bolts and I only used them all on medium. I even put a 2.0 on the HT and on medium it took of the bolt just as easily. I wanted to do that test as my friend had a 2.0 on a 2663 regular HT 1/2 impact and it would not remove his lugs. In all the 1/2 tests I used my fancy 4-5" lug sockets with the 3" key, so theres a lot of possible torque loss and yet it was easy peasy.
Failures, even with a HO 6.0 the 2760 Surge would not remove a bolt LOLOL. I used the Milwaukee hex to 3/8 adapter and 2" deep socket. I didnt expect it to but what the hell why not try. I thought I was going to break the Surge, would pull the trigger and it would impact for 1 second and then shut down, I persisted and did this slowly like 10+ times to see if it would break it loose, no luck and my Surge might be broken oops. The M12 Stubby 2552 1/4 impact also would not remove a bolt, I used a 1/4-3/8 adapter and 2" deep socket. I thought it would work but it just couldnt manage it even with an XC 6.0.
Surprises, the M18 Fuel Gen2 1/4 Hex One Key Hex Impact 2757 with a HO 6.0 removed a lug bolt! I used the Milwaukee hex to 3/8 adapter and 2" deep socket. I had tested this years ago and dont think people really believed me it works, but it does. The only other surprise was that the M12 Fuel Gen 1 3/8 Impact 2454 with a XC 6.0 battery really struggled. With a socket and the lock key it would not remove a bolt, just using a socket it barely could get a bolt off. Long ago when I had much less impacts, I thought it used to work more often.
Predictiable, M18 Fuel Gen2 3/8 Impact One Key 2758 (2754 is non one key) with XC 5.0 battery. With a 2" deep socket and the 3" key it easily reomved a lug bolt on high, I thought it would struggle and it did not. Both the M12 Fuel 3/8 Stubby 2554 & 1/2 Stubby 2555 Impacts could not remove a lug bolt with the 4-5" lug sockets and 3" key, which I kind of guessed would happen. They both could remove the bolt with just a 2" deep socket and the 3" key, but still struggled. Using just a 2" socket was much easier and surprisingly matched the performance of the M18 3/8 2754 impact where it was using a 2" deep socket and the 3" key. Seems like the M12 stubbies are best with only a socket and no extensions & such. I did put an XC 6.0 on the 3/8 and a compact 3.0 on the 1/2, there was a small difference. In the special lug socket plus 3" key test, the 3/8 with the 6.0 almost got it, the 1/2 with the compact 3.0 stood no chance. I would say maybe 10%+ power difference.
My future lug nut use is going to be M18 MT 1/2 with HO 6.0 for removal and M12 Stubby 1/2 with compact 3.0 for install. The M12 is so easy and light to use with a compact battery.