Bosch 17618B 18V Litheon Brute Hammer Drill/Driver Bulk Kit Features 0-475 RPM and 0-2,050 RPM, 30,750 BPM, 650-inch pounds torque Durashield housing and uni-body power train withstand real world conditions Litheon batteries guarantee optimal performance of tool and batteries 1/2-mnch metal chuck for increased durability Integrated LED light is great for dark or enclosed areas