The Best 20v Cordless Drill: DEWALT DCD795D2.
The Best 18v Impact Driver: Makita 18v Lxt.
Dewalt 20v DCF620B Max Brushless ScrewGun.
Hitachi DB3DL2 3.6 V Dual-Position Cordless Screwdriver Kit.
Best Cordless Hammer Drill: Milwaukee M18 2605-20.