Delivering 450 ft-lb fastening torque and 600 ft-lb 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 upto 0 to 2300 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 L and 5.3 lb with a 5 Ah battery, the M18™ FUEL™ 3/8 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.