The Bosch SDS Max Demolition Hammer features vibration control in the hammer mechanism and grip area for excellent user comfort. The constant response circuitry provides constant speed under load, as well as overload protection. The vario lock positioning rotates and locks chisel in 12 different positions. The hammer also features an auto-max variable speed dial to provide maximum speed and power during use. Includes: auxiliary handle and carrying case. ADDITIONAL SPECIFICATIONS: Rating: 120V; Amperage: 13.0; No Load BPM: 1,300 - 2,900; Impact Energy (ft.-lbs.): 6.1 EPTA; Length: 18.6"; Weight: 13.7 lbs.