Bosch, 18 Volt, EC Brushless 1/2 in. Hammer Drill/Driver Kit. Includes (1) 2.0 Ah SlimPack Battery. Powerful hammer drill/driver design made with a brushless motor to deliver runtime and power for tough applications. EC Brushless motor efficient power that delivers 490 in. lb. of torque and outstanding runtime. 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 and Cell Protection longer life in tool and battery, helps protect from overload. Drill-area LED illuminates low light.