The Milwaukee® M18™ FUEL™ 3/8 in compact impact wrench w/friction ring is the most compact in its class, delivering the most access in tight spaces, up to 250 ft-lb of nut-busting torque and maximum workspace visibility. The Milwaukee® cordless impact wrench measures only 4.8 in L with a POWERSTATE™ brushless motor to provide the power to remove stubborn fasteners, even in confined spaces. The Milwaukee® 3/8 in impact wrench has tri-LEDs that surround the anvil to deliver brighter light with fewer shadows. 4-mode DRIVE CONTROL™ offers greater precision with a range of pre-set rpm and IPM levels, selectable from a single button on the tool. By selecting mode- 4, AUTO SHUT-OFF™ control applies no more than 20 ft-lb of torque for hand-tight fastening applications to prevent overtightening. Mode-4 also features bolt removal control delivers full torque output, then decreases RPMs once the bolt is loosened to prevent fastener drops. REDLINK PLUS™ intelligence electronics make these controls possible while ensuring maximum performance, protecting the tool against overloads, over-heating and over-discharge. The M18™ REDLITHIUM™ battery pack (not included) fits M18™ tools, delivering more work per charge and more work over the life of the pack.