Cordless Rotary Hammer Voltage 18 V Chuck Style SDS-Plus Solid Bit Optimal Drilling Range in Concrete 3/8 in to 3/4 in Core Bit Capacity in Concrete 1 1/8 in Blows per Minute 0 to 4600 bpm Anti-Kickback Clutch Yes Modes of Operation Hammer and Rotate Hammer Only Rotate Only Brushless Motor Yes Cordless Tool Kit Contents (1) Bare Tool (1) Battery Battery Capacity 6 Ah Core Bit Capacity 1 1/8 in Impact Energy 3.6 ft-lb Battery Model Number 481Z44 Battery Series M18