The Mechanics M558DB 1/2-inch Drive Impact Wrench handles your heavy-duty high-speed and high-torque jobs. The Mechanics 1/2-inch Drive Impact Wrench has a built-in air regulator in a well-balanced design. Features: * 7,000 RPM free speed * 230 foot-pounds of torque * 4 CFM * 90 PSI * Built-in air regulator * Well-balanced design * 3/8 inch I.D. What"s In The Box: * Mechanics M558DB 1/2-inch Drive Impact Wrench