milwaukee 2852-20 m18 fuel 18-volt lithium-ion brushless cordless mid torque 3/8 in. impact wrench with friction ring (tool-only) milwaukee's 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- 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 (sold separately), the m18 fuelmid-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 lbs. with a 5.0ah battery, the m18 fuel mid-torque impact wrench delivers the balance and weight desired by professionals for all day use.