The Bosch Rotary Hammer features 2 modes of operation, a rotary hammer and rotation only. The rotating brush plate provides equal power in reverse and extends the life of the brush. The Intregal clutch disengages the torque transmission in case of a bind situation. The hammer also features a variable speed trigger with reversing for easy removal of bound bits and fasteners. Includes: 360 degree auxiliary handle, dust collection canister attachment and carrying case. ADDITIONAL SPECIFICATIONS: Rating: 120V; Amperage: 6.1; No Load RPM: 0-1000; No Load BPM: 0-4400; Impact Energy (ft.-lbs.) 1.7 EPTA; Maximum Capacities Concrete: 3/4"; Maximum Capacities Steel: 1/2"; Maximum Capacities Wood: 1/2" - 3/4"; Maximum Capacities Concrete - Thin Wall Core Bit: 1-1/2"; Length: 13.0"; Weight: 5.5 lbs.