Rotary Hammer Voltage 18 V Chuck Style SDS-Max Solid Bit Optimal Drilling Range in Concrete 0 in to 1 9/16 in Core Bit Capacity in Concrete 1 9/16 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 4 in Impact Energy 5.2 ft-lb Battery Series CORE18V Profactor Charger Included No Clutch Style Slip Clutch