M18 FUEL™ 1/2" Mid-Torque Impact Wrench w/ Friction Ring (Bare Tool) (B-1, SF) Best power-to-weight ratio is offered as the tool provides 650 ft-lbs. of nut-busting torque at only 5.1 lbs. with a 5.0Ah battery. 6.0" in length provides most access in tight spaces Tri-LEDs deliver high-definition lighting to increase workspace visibility with fewer shadows 4-Mode DRIVE CONTROL™ provides greater control over output speed and power. Includes auto shut-off and bolt-removal mode Auto shut-off mode prevents over-tightening and increases productivity by applying no more than 35 ft-lbs. of torque. Bolt-removal mode offers more control after bolt breakaway as RPMs drastically slow down once the bolt is loosened. Mode 1 RPMs: 0-1,250; Mode 2 RPMs: 0-1,950; Mode 3 RPMs: 0-2,575; Mode 4 RPMs: 0-2,575 Mode 1 IPMs: 0-900; Mode 2 IPMs: 0-2,100; Mode 3 IPMs: 0-3,100; Mode 4 IPMs: 0-3,100 REDLINK PLUS™ Intelligence ensures maximum performance and protects from overloads, heating, and over-discharge Works in up to 69kV environments Compatible with all M18™ batteries & Chargers Faster removal speed provides increased user productivity