The Bosch 1-9/16" SDS-Max Demolition Rotary Hammer (11321EVS) is a 13.0 Amp tool that gets the job done, delivering 6.1 Ft. Lbs. of impact energy and a max of 2,900 BPM. 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. Vario-Lock positioning permits rotating and locking the chisel with precision, while the Auto-Max variable-speed dial permits the operator to match power to application – from 1,300 BPM to 2,900 BPM. The SDS-max chuck system provides tool-free bit changes, while the Service Minderlight indicates that maintenance is needed. Also featured is a 360° rotating auxiliary handle and a padded rear handle for extra operator comfort.