Cordless Hammer Drill Kit, Voltage 20.0, Battery Included, Chuck Size 1/2 In., Brushless Motor Yes, No Load RPM 0 to 550/0 to 2000, Blows per Minute 0 to 34,000, Max. Torque Not Specified, Max. Power 460UWO, Battery Included (2) 21RV46, Cordless Tool Battery Type Li-Ion, Battery Capacity 2.0Ah, Tool Length 7-1/2 In., Tool Weight 3.6 lb., Clutch Style Ratcheting, Handle Type T-Handle, Battery Pack Replacement 21RV46, Features 3 LED Fuel Gauge, Lightweight