This Bosch Compact Tough(TM) cordless drill/driver has 18+1 clutch settings and delivers 442 in/lb of torque for superior drilling power even in tough materials. It features a reverse setting, a 0-500 RPM speed setting and a 0-1,700 RPM speed setting that lets you tackle a variety of projects with ease. An auto-lock 1/2" (1.25 cm) keyless chuck makes it quick and easy to exchange bits, while the Compact Tough(TM) design features a short head length and lightweight (3.5 lbs) construction for durability, comfort and ease of use. The EC brushless motor provides a longer run life and requires no maintenance. It features Durashield(TM) housing, a Bosch exclusive flexible housing designed and tested to withstand multiple 10' drops. The drill has a flexible power system as it is compatible with any Bosh 18-volt lithium-ion battery (battery and charger not included).