Cordless Rotary Hammer, Voltage 18 V, Chuck Style SDS-Plus, Solid Bit Optimal Drilling Range in Concrete 3/16 in to 1/2 in, Core Bit Capacity in Concrete 1/2 in, Blows per Minute 0 bpm to 4,700 bpm, Anti-Kickback Clutch Yes, Modes of Operation Hammer Only, Brushless Motor Yes, Cordless Tool Kit Contents (1) Bare Tool, Core Bit Capacity 1 in, Impact Energy 1.7 ft-lb, Battery Series LXT, Charger Included No, Drilling Capacity in Concrete 1 in, Drilling Capacity in Steel 1/2 in