The Milwaukee® M18 Fuel™ 1/2" Compact Impact Wrench W/ Pin Detent Kit Is The Most Compact In Its Class, Delivering More Power, The Most Access In Tight Spaces At Only 4.9" In Length, and Maximum Workspace Visibility. This Cordless Impact Wrench Features A Powerstate™ Brushless Motor That Generates Up to 250 FT-LBS Of Fastening and Nut-Busting Torque, Providing The Power Required For Installation and Removal, Even In Confined Spaces. This Battery-Powered Impact Wrench Has Tri-Leds That Surround The Anvil to