Cordless Hammer Drill/Driver Kit Voltage 18.0 Battery Included Chuck Size 1/2 In. Brushless Motor Yes No Load RPM 0 to 600/0 to 2100 Blows per Minute 0 to 31 500 Max Torque 531 in.-lb. Max Power Not Specified Battery Included (2) 48UT60 Cordless Tool Battery Type Li-Ion Battery Capacity 2.0Ah Series Ultra-M Tool Length 7-13/64 In. Tool Weight 3.5 lb. Clutch Style Adjustable Handle Type Pistol Grip Battery Pack Replacement 48UT60