The SKIL PWR CORE 20™ Brushless 20V 3/8-inch Compact Impact Wrench gives you big power in a compact, lightweight package with up to 170 foot-pounds of fastening torque, 220 foot-pounds of nut-busting torque, and up to 3,950 IPM for driving tough nuts and bolts. At more than 1 inch shorter than its previous generation, this cordless impact wrench is an ideal power tool for working overhead or busting hard-to-reach car lug nuts and caliper bolts. Its 3/8-inch square anvil features a friction ring for easy socket changes, and its digital brushless motor combined with three-speed selection provides high-performance power and precise control. This 20V cordless electric impact wrench also features reverse control mode for maintaining control when loosening bolts to prevent them from flying off and falling into narrow, hard-to-reach places as they're removed. The impact wrench's Halo Light™ provides 5X more light than common LEDs while reducing shadows—and it lights up your workspace for up to 10 minutes. This 20V impact wrench is compatible with any PWR CORE 20™ battery (available separately), which features industry-leading battery technology that wraps each cell with cooling material to keep the battery powering on for 25% longer runtime and 2X battery life.