Bosch DH712VC SDS-Max Demolition Hammer 14.5 amps, 9.6 ft. lbs. of impact energy (E.P.T.A.) and 18.3 lbs. provides maximum productivity in all day chiseling and demolition applications Active vibration control reduction in the hammer mechanism and the grip area provides maximum user comfort for extended periods of work Constant response circuitry maintains speed under load and overload protection Articulating auxiliary handle provides maximum comfort and control by maintaining the best working posture possible Vario-lock positioning rotates and locks chisel into 12 different positions