Rotary Hammer, Chuck Style SDS-Plus, Handle Type L-Shape, Solid Bit Optimal Drilling Range in Concrete 1/4 in to 5/8 in, Solid Bit Capacity in Concrete 1 3/16 in, Modes of Operation Hammer & Rotate, Kit Contents (1) Bare Tool, Current 7.5 A, Voltage 120V AC, Maximum Blows per Minute 4,500 bpm, Impact Energy 2.9 ft-lb, Blows per Minute 0 to 4,500 bpm, Cord Length 8.2 ft, Core Bit Capacity in Concrete 3 1/8 in, Drilling Capacity in Concrete 1 3/16 in, Drilling Capacity in Steel 1 3/16 in