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. 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 Minderlight 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 degree Auxiliary handle provides a wide range of movement along with operator comfort Double insulated, UL listed, complies to OSHA