Rotary Hammer, Voltage 18 V, Chuck Style SDS-Plus, Solid Bit Optimal Drilling Range in Concrete 1 1/4 in, Core Bit Capacity in Concrete Not Available, Blows per Minute 0 bpm to 4650 bpm, Anti-Kickback Clutch Yes, Modes of Operation Hammer Only, Rotary Hammer, Rotary Only, Brushless Motor Yes, Cordless Tool Kit Contents (1) Bare Tool, Battery Capacity 5.0 Ah, 6.0Ah, Core Bit Capacity Not Available, Impact Energy 3.65 ft-lb, Handle Type D-Handle