Cordless Hammer Drill Voltage 18V Cordless Drill Class Compact Premium Chuck Size 1/2 in Drilling Capacity in Concrete 1/2 in Drilling Capacity in Wood 2 in Number of Speed Settings 2 Number of Clutch Settings 20 + 1 Maximum Working Torque 44.6 ft-lb Blows per Minute 0 to 28 500 Maximum Blows per Minute 28 500 bpm Minimum Blows per Minute 0 bpm Brushless Motor Yes Cordless Tool Kit Contents (1) Bare Tool Battery Series CORE18V(R) Charger Included No Chuck Material Metal