Bosch, 18 Volt, EC Brushless 1/2 in. Hammer Drill/Driver (Bare Tool). Powerful hammer drill/driver design made with a brushless motor to deliver runtime and power for tough application. Rapid Mode Selection plus clutch with 20 settings provide driving accuracy for reduced fastener damage. All-metal chuck for more durability, along with first-rate bit retention. Weighs 2.4 lbs. Delivers 0-22,000 bpm. Two-speed gearbox choose between high-torque driving or high-speed drilling. Outstanding control variable drilling speeds for high-speed (0-1,900 rpm) and high torque (0-600 rpm). Ergonomic grip zone soft grip and improved design enables better handling and greater comfort. Electronic Motor Protection longer life of tool, helps protect from overload. Drill-area LED illuminates dark zones.