The Bosch GSB18V-490 18V EC Brushless 1/2 In. Hammer Drill/Driver is made to tackle demanding materials and applications (such as metal or masonry) anywhere on a worksite. This powerful hammer drill/driver features Rapid Mode Selection, to switch among hammer mode, drilling mode and driving mode, engaging a clutch with 20 precision torque settings, for reduced fastener damage. Its efficient EC Brushless motor delivers outstanding runtime and longer motor life. It generates 490 In.-Lbs. of torque and a no-load bpm of 0-22,000. This drill is variable-speed and has a two-speed gearbox, designed for high-torque driving (0-460 rpm) or high-speed drilling (0-1,800 rpm). With an upgraded, all-metal chuck, the drill has great bit hold and torque transfer. The GSB18V-490 features Bosch's Electronic Motor Protection, an LED for illumination and a belt clip. It is an easy tool to handle, with an ergonomic grip zone.