Our guys in the shop have gone to using battery powered tools a lot. They still have their air ratchets and impacts, mainstays in body shops since forever, but they stay in the tool box. They use mainly use either Snap-On or Matco Or Mac Tools but still battery powered. A re-chargeable 1/4" ratchet, a 3/8" impact, and a 1/2" impact and you're set.