Factory-Reconditioned Bosch 11241EVS-RT 1-9/16-Inch 11 Amp SDS-Max Combination Hammer Reconditioned Bosch Products have a One-year warranty through the Bosch factory or an authorized service center 11-amp motor delivers 170 to 340 rpm and 1,700 to 3,300 bmp Constant response circuitry maintains speed under load and provides overload protection Vario-lock chuck allows for user positioning of chisel Dual mode selector allows for both rotary hammer and hammer only use