The Bosch PS82 12V Max Brushless 3/8 In. Impact Wrench is a lightweight, high-efficiency impact wrench that is ideal for pros to use for tight spaces or overhead work. This 12V 3/8 In. impact wrench has a 5.5 In. head length and weighs just 1.6 Lbs. (tool only, not including battery). But it delivers 85 Ft.-Lbs. of max torque, ideal for serial driving tasks, as well as no-load rpm ratings of 0-1,200 and 0-2,600 rpm and no-load ipm ratings of 0-2,700 and 0-3,100. It has the Bosch performance control system, which supplies two speed settings, one for high speed and high torque and one for low speed and low torque. And it provides a maintenance-free brushless motor, an upgraded all-metal gearbox and an optimized impact system – which together allow for unmatched efficiency, great runtime and longer life. This wrench has a 3/8 In. square drive anvil and a three-LED light ring.