The SDS-max Demolition Hammer is a 13 Amp tool that gets the job done, delivering 6.1 ft.-lbs. of impact energy and a max of 2,900 BPM. Yet it weighs only 13.7 lbs. for outstanding power-to-weight performance, and it has Vibration Control for all day comfort. This hammer provides Constant Response circuitry for constant power under load, as well as smooth starts and overload protection.