Delivering 450 ft-lbs fastening torque and 600 ft-lbs nut-busting torque, the M18™ FUEL™ 3/8 in. mid-torque impact wrench is the most powerful 3/8 in. impact wrench in the industry. The POWERSTATE™ brushless motor delivers up to 0 to 2,300 RPM resulting in increased productivity. REDLINK Plus™ intelligence is the most advanced electronic system on the market, preventing damage to the tool and battery caused by overloading or overheating. For use with REDLITHIUM™ compact batteries or extended capacity batteries, the M18™ FUEL™ mid-torque delivers more work per charge and more work over the life of the pack than competitive batteries on the market. The 3-mode DRIVE CONTROL™ provides greater control over output speed and power for greater versatility. At 6.7 in. in length and 5.3 lbs with a 5.0 Ah battery, the M18™ FUEL™ 1/2 in. mid-torque impact wrench delivers the balance and weight desired by professionals for all day use. This tool offers quick, tool-free socket changes with a 3/8 in. friction ring anvil. The anvil provides the most durable solution allowing users to work longer than any cordless competitor in its class. A premium rubber overmold material gives you ultimate comfort during prolonged use while lasting longer against corrosive materials.