Love my 20v dewalt 1/2 inch, also have the 1/4 and 3/8th in the lower voltage butt I don't remember the volt on them and they all use the same chargers. I have been using them about 5 years in a full service shop and they still work great except one of the smaller batteries broke it's locking tab so it falls off the impacts unless you hold it on there.
Agreed hands down 20 V Dewalt, ......we've gone thru the entire offerings of 120 V electric, 14-20 VDC battery and pneumatic impact guns in the shop, of all the major brands regarding cordless, the Dewalts are the only things to do the job repeatedly and survive the gorillas using them on a daily basis.... Roiboy is a good second choice, the Milwaukees suck up battery time too fast, and the torque can't compare to the Dewalts output regardless of the mfg's supposed ratings....
