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 2050 Blows per Minute 0 to 32 300 Max Torque 1300 in.-lb. Max Power Not Specified Battery Included (2) 28CP79 Cordless Tool Battery Type Li-Ion Battery Capacity 5.2Ah Series Ultra-M Tool Length 8-13/32 In. Tool Weight 5.3 lb. Clutch Style Electronic Handle Type Pistol Grip Battery Pack Replacement 28CP79