The Milwaukee M18 FUEL 1/2 in. Compact Impact Wrench with Friction Ring is the most compact in its class, delivering users the most access in tight spaces, up to 250 ft./lbs. of nut-busting torque, and maximum workspace visibility. This battery-powered impact wrench measures only 4.9 in. L with a POWERSTATE Brushless motor to provide the power to remove stubborn fasteners, even in confined spaces.