The M18 FUEL™ 1/2" Compact Impact Wrench with Pin Detent delivers maximum access in tight spaces, up to 339 Nm of nut-busting torque, and maximum workspace visibility. This battery-powered impact wrench measures only 124.5 mm in length, with a POWERSTATE™ Brushless Motor to provide the power to remove stubborn fasteners, even in confined spaces. The MILWAUKEE® 1/2" Compact Impact Wrench with Pin Detent has tri-LEDs that surround the anvil to deliver the user brighter light with fewer shadows. 4-Mode DRIVE CONTROL offers enhanced 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 Mode applies no more than 27 Nm of torque for hand-tight fastening applications to prevent overtightening. Mode 4 also features Bolt Removal Mode, where the tool 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™-ION battery pack (not included) fits all M18™ tools, delivering more work per charge and more work over the life of the pack.