Cordless Hammer Drill, Voltage 12V, Cordless Drill Class Compact Premium, Chuck Size 1/2 in, Drilling Capacity in Concrete 3/8 in, Drilling Capacity in Wood 1 1/4 in, Number of Speed Settings 2, Number of Clutch Settings 12, Maximum Working Torque 400 in-lb, Blows per Minute 0 to 22,500, Maximum Blows per Minute 22,500 bpm, Minimum Blows per Minute 25,500 bpm, Brushless Motor Yes, Cordless Tool Kit Contents (1) Bare Tool, Battery Series M12(TM) REDLITHIUM(TM), Charger Included No