Rotary Hammer Voltage 18 V Chuck Style SDS-Plus Solid Bit Optimal Drilling Range in Concrete 0 in to 1 1/4 in Core Bit Capacity in Concrete 1 1/4 in Blows per Minute 0 bpm to 2 900 bpm Anti-Kickback Clutch Yes Modes of Operation Hammer and Rotate Hammer Only Brushless Motor Yes Cordless Tool Kit Contents (1) Bare Tool Battery Capacity 8.0 Ah Core Bit Capacity 3 1/4 in Impact Energy 4.3 ft-lb Battery Series CORE18V Profactor Charger Included No Clutch Style Slip Clutch