Brushless Hammer Drill Voltage 18V Cordless Drill Class General Purpose Chuck Size 1/16 in Drilling Capacity in Concrete 5/8 in Drilling Capacity in Wood 2 1/2 in Number of Speed Settings 3 Number of Clutch Settings 12 Maximum Working Torque 531 ft-lb 1 062 ft-lb Blows per Minute 32 300 Maximum Blows per Minute 32 300 bpm Minimum Blows per Minute 38 000 bpm Brushless Motor Yes Cordless Tool Kit Contents (1) Bare Tool (1) Charger Bit Case Battery Capacity 5.5 Ah