Hammer Drill Kit Voltage 18V Cordless Drill Class Compact Premium Chuck Size 1/2 in Drilling Capacity in Concrete 5/8 in Drilling Capacity in Wood 4 in Number of Speed Settings 2 Number of Clutch Settings 16 Maximum Working Torque 1 400 in-lb Blows per Minute 0 to 33 000 Maximum Blows per Minute 33 000 bpm Minimum Blows per Minute 0 bpm Brushless Motor Yes Cordless Tool Kit Contents (1) Bare Tool (1) Charger (3) Batteries Battery Capacity (1) 5.0 Ah