the impacts are hard on the bolts i just use the drill of this set its got enough power to turn most fasteners i have tried. they are light and the batteries last so long i forget where i left the charger sometimes, and i use it daily
We have two guys here that had that setup and went with the lithium ion batteries instead. Problem is the regular batteries crap out after a year. Luckly I have a battery repair down town can repair a battery for thirty dollars. I hope It works out well for ya.
lithium ion. they dont care about the cold like LA batteries either. i have the 18v makita drills and 1/2in impact set in my work truck and those batteries are out in the cold and work fine for quite a while even if they were charged a couple months ago