Cordless Hammer Drill, Voltage 20.0 V, Bare Tool, Chuck Size 1/2 in, Brushless Motor Yes, No Load RPM 0 to 2000, Blows per Minute 0 to 34,000, Max. Torque Not Specified, Max. Power 460UWO, Battery Included No, Cordless Tool Battery Type Li-Ion, Battery Capacity 2.0Ah, Series Tool Connect(TM), Tool Length 7 13/32 in, Tool Weight 3.6 lb, Clutch Style Keyless, Handle Type Pistol Grip, Battery Pack Replacement 21RV46