In the shop I work in, 22 techs, the thing now is to get a 3/8 battery impact. Am seeing Snapon, Makita, and Dewalt, all variations. A few have splurged on a 1/2inch battery impact, and they work surprisingly well. Another new thing is a 1/2 in. impact, built like a 3/8 air ratchet, don't know the number. Aluminum housing, and do they ever work. It is a true impact, and doesn't pin your knuckles against the nearest frame rail. What I also see are the worn out battery tools they bought 5-6 years ago, a lot of money gone for a quick tool fix. So I keep on with my air tools. The shop supplies the air, and I learned long ago how to drag a hose around.