I use 20v dewalt drill/impact/oscillating tool. Get a 3/8 and 1/4 socket adapter for the little impact. It's very handy. 2 years on this set and holding up well to daily use (I'm a marine mechanic) I also carry a snap on 1/4" 14.4v cordless ratchet, and 3/8" 14.4v impact in my tool bag. I thought the were ridiculous when I first saw them. They are a constant go to now.
I've found with cordless tools, the more you use them, the longer they last. Sitting seems hard on the batteries.
For quality hand tools, snap on can't be beat for professional use. I recently acquired a full set of "icon" sockets from harbor freight. I will say for the same money as kobalt/husky, they are immensely better. They are patterned after snap on and have many of the same feature, yet you don't feel so bad when one goes overboard or disappears in a Blige.
THE ONE TOOL EVERY ONE SHOULD BUY IS A SNAP ON #2 PHILLIPS. They are truly superior.