This impact wrench is a must for jobs in the shop or garage. The twin hammer delivers a max torque of 585 ft. lbs. and the impact wrench features a forward/reverse regulator with five speeds, allowing you total control. With a free speed of 7000 RPM, this impact wrench is a whirlwind when tightening or loosening nuts and bolts! Twin hammer impact mechanism Pressure feed lubrication Adjustable power regulation Rugged die cast aluminum housing Reversible action 1/2 in. bolt capacity