Milwaukee 2402-22 M12 Fuel 1/4 Hex 2-Spd Screwdriver Kit W/2 Bat Delivers up to 325 in-lbs of peak torque with maximum sustained torque to complete a variety of applications Superior pack construction, electronics, and performance deliver more work per charge and more work over pack life than any battery on the market Provides optimized performance and overload protection using total system communication between tool, battery and charger