The Bosch Rotary Hammer features vibration control for maximum user comfort during extended work periods. The quick change chuck system allows quick and easy changeout between SDS plus chuck and optional three jaw chuck (accessories not included). The multi function selector provides 3 modes of operation: rotary hammer, rotation only and hammer only. The hammer also features an integral clutch that disengages torque transmission if the bit gets into a bin situation. Includes: Auxiliary handle, depth gauge, carrying case and quick change chuck - SDS. ADDITIONAL SPECIFICATIONS: Rating: 120V; Amperage: 8.5; No Load RPM: 0-760; BPM Under Load: 0-3600; Impact Energy (ft.-lbs.): 3.1 EPTA; Max Capacities Concrete: 1-1/4"; Max Capacities Steel: 1/2"; Max Capacities Concrete - Thin Wall COre Bit: 3-1/8"; Max Capacities Core Bit: 3-1/2"; Length: 15.75"; Weight: 10.3 lbs.