The most compact hammer drill driver in its class is more powerful than the competition. Built with a Milwaukee® 4-pole frameless motor, the M18™ compact 1/2 In. drill driver delivers 500 in-lbs of torque and up to 1,800 RPM. At only 7-1/4 In. length, this drill driver allows you access to the tightest work spaces. An all-metal gear case and 1/2 In. metal chuck provide maximum durability, even on the most challenging work sites.