Delivering 450 ft-lbs Fastening torque and 600 ft-lbs Nut-Busting torque, the M18 FUEL™ 3/8" Mid-Torque Impact Wrench is the most powerful 3/8" Impact wrench in the industry.  The POWERSTATE™ Brushless Motor delivers up to 0- 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 length and 5.3 lbs with a 5.0Ah battery, the M18 FUEL™ 3/8" 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" 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.