Bosch hammers offer leading performance. A powerful 14 Amp motor with Constant Response circuitry. This provides a constant hard-hitting 12.4 Ft./Lbs. Of impact energy. Variable speed control allows users to adjust the impact force to the material being removed. The SDS-max® tool holder provides you with the largest assortment of Bosch brand steel accessories for every job. The padded rear handle absorbs shock for operator comfort. The most important data Adjustable Handle Position Yes Amperage 14 Chuck Design Keyless Chuck Size SDS-Max Height in 12 " Impact Energy 12.4 ft.-lbs. Impact Energy/EPTA (ft. lbs.) 12.4 Ft.-Lbs. EPTA Length in 22.5 " Material Metal, Plastic No Load BPM 900-1,890 Rating 120V Variable Speed Yes Voltage 120V Weight 22.5 lb Width in 5 " Works With Dust Extraction/Collection Hood, HDC300, SDS-max® Hammer Adapter for SDS-plus® Accessories, HA1030, SDS-max® Hammer Adapter for Spline Accessories, HA1031 Includes (1) 11316EVS 14 Amp SDS-max® Demolition Hammer(1) Auxiliary Handle(1) Grease Tube(1) Carrying Case