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. Benefits: SDS-max® bit system for tool-free bit changes with automatic bit locking, dust protection and maximum impact energy transfer rate Variable-speed dial for controlled chipping applications Constant Response™ circuitry provides soft-start, maintains constant speed under load and provides overload protection Service Minder™ light indicates when preventative maintenance is required In chisel mode, Vario-Lock™ positioning allows chisel to be rotated into 12 different positions to optimize the working angles Padded rear handle absorbs shock for operator comfort 360° Auxiliary handle provides a wide range of movement along with operator comfort Double insulated, UL listed, complies to OSHA Specifications Attributes Amperage 14.0 Chuck Design Keyless Chuck Size SDS-Max Impact Energy/EPTA (ft. lbs.) 4.4 -12.4 Ft./Lbs. Length 22.5" Material Metal, Plastic No Load BPM 900-1,890 Rating 120V Voltage 120V Weight 22.5lb Width 5.0" Includes Auxiliary Handle, Carrying Case