The most compact impact wrench in its class delivers most access in tight spaces， up to 250 Ft./Lb. of nut-busting torque， and maximum workspace visibility. The M18 FUEL 3/8 In. Compact Impact Wrench w/ Friction Ring measures only 4.8 In. in length， while the POWERSTATE brushless motor provides the power to remove stubborn fasteners， even in confined spaces. Tri-LEDs surround the anvil to deliver brighter light with less shadows. 4-Mode DRIVE CONTROL offers greater precision with a range of pre-set RPM and IPM levels， selectable from a single button on 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. Also， in Mode 4， 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. Compatible with all M18 batteries and chargers. Tool Only - battery and charger not included.