Metal gearbox for optimum seating of the gears and longer life Block construction for exact seating of bearings and maximum robustness AVS - Anti-Vibration System dramatically lowers the level of vibration feedback to the user, and makes for more comfortable operation Electronic package with constant speed, softstart, motor overload protection and no-load speed limitation Soft hammer mode reduces blow energy and speed for drilling/ chiseling in sensitive materials  FIXTEC for quick and easy changing of accessories or tool system adaptors without loss of power or efficency QUIK-LOK cable for quick and easy cable changing if needed, reduces downtime and increases productivity.