The Bosch Compact Tough™ hammer drill/driver bare-tool kit features a drill with an innovative, lighter canned 18 V motor, which gives the same power with lighter weight and a more compact design. The drill features a heavy-duty chuck that prevents drill bits from slipping during high-torque applications, thanks to high clamping force for great bit retention. The keyless 1/2 In. auto-lock chuck allows for one-handed bit changes. It is a powerful tool, with 600 In.-Lbs. of torque and two drilling speeds (0-1,900 RPM for high speed and 0-500 RPM for torque), as well as up to 27,000 BPM in hammer mode for masonry. This cordless drill was engineered with the Bosch Compact Tough design for the shortest head-length in class (7.6 In. long) and a weight of only 3.5 Lbs.Durable, heavy-duty chuck – better bit retention and great torque transferInnovative, lighter 18 V canned motor – more compact but the same powerCompact Tough design – shortest head-length in class for maneuverabilityTough motor – all-day productivity with 600 In.-Lbs. of torqueFull hammer mode for masonry – up to 27,000 BPMComfortable to use – weighs only 3.5 Lbs. and is only 7.6 In. longErgonomic grip zone – small diameter enables better gripping and greater comfortOutstanding control – variable drilling speeds for high-speed (0-1,900 RPM) and high torque (0 to 500 RPM)Versatility for more productivity – keyless ratcheting 1/2 In. chuck enables one-handed bit changes