Cordless Rotary Hammer, Voltage 18 V, Chuck Style SDS-Plus, Solid Bit Optimal Drilling Range in Concrete 3/16 in to 3/8 in, Core Bit Capacity in Concrete 5/8 in, Blows per Minute 0 bpm to 7,000 bpm, Anti-Kickback Clutch No, Modes of Operation Rotate Only, Hammer and Rotate, Brushless Motor No, Cordless Tool Kit Contents (1) Bare Tool, Core Bit Capacity 5/8 in, Impact Energy 1.0 ft-lb, Battery Series M18, Charger Included No, Drill Chuck Type Keyless, Drilling Capacity in Concrete 5/8 in