The GSR 18V-21 Professional cordless drill/driver is Bosch's reliable entry-level tool in the 18-volt class. Its strong torque of 55 Nm provides the necessary power for standard drilling and screwdriving applications. The dependable and durable drill/driver offers professional quality for daily use, thanks to its all-metal gearbox and Electronic Cell Protection. Additionally, the professional design with a keyless 13-mm chuck ensures high-quality work. This power tool is designed for drilling in wood with a maximum diameter of 35 mm, in steel up to 13 mm, and for screw diameters up to 10 mm. It is compatible with all Bosch Professional 18-volt batteries and chargers. The GSR 18V-21 Professional also features 2 speed settings, auto-lock, LED light, a lithium-ion battery, and forward/reverse operation.