21V Max Cordless Drill Driver Kit with 2 Batteries & Fast Charger, 266 In-Lbs Po

6-layer safety protection against overcharging and overheating for peace of mind. Not designed for heavy concrete use. [2-Speed Gearbox & 24+1 Precise Clutch] 2-speed gearbox (0–350 / 0–1350 RPM) with stepless variable speed trigger — easily switch from delicate to heavy-duty tasks.