Cordless Hammer Drill, Voltage 18V, Cordless Drill Class General Purpose, Chuck Size 1/2 in, Drilling Capacity in Concrete 5/8 in, Drilling Capacity in Wood 2 1/8 in, Number of Speed Settings 2, Number of Clutch Settings 22, Maximum Working Torque 41.6 ft-lb, Blows per Minute 0 to 28,800, 0 to 7,200, Maximum Blows per Minute 7,200 bpm, 28,800 bpm, Minimum Blows per Minute 0 bpm, Brushless Motor No, Cordless Tool Kit Contents (1) Bare Tool, Battery Series M18(TM) REDLITHIUM(TM)