The Bosch Rotary Hammer features vibration control for maximum user comfort during extended work. The multi function selector features 3 modes of operation: rotary hammer, rotation only and hammer only. The vario lock positioning rotates and locks the chisel into 12 different positions, while the variable speed trigger provides quick and easy removal of bound bits and fasteners. Includes: Auxiliary handle, depth gauge and carrying case. ADDITIONAL SPECIFICATIONS: Rating: 120V; Amperage: 8.0; No Load RPM: 0-900; BPM Under Load: 0-4000; Impact Energy (ft.-lbs.): 2.6 EPTA; Maximum Capacities Concrete: 1-1/8"; Maximum Capacities Steel: 1/2"; Maximum Capacities Wood: 1" - 1-1/8"; Maximum Capacities Concrete - Thin Wall Core Bit: 3-1/8"; Length: 12.5"; Weight: 7.7 lbs.