1/2" Impact Wrench. This is our most popular 1/2" impact wrench. This pistol grip impact wrench features the improved oil bath DYNA-PACT clutch for improved performance and longer life. The differential regulator allows you to match the required power to the job. The handle exhaust directs the air away from the operator. Built in 360 degree swivel prevents kinked hoses. Teasing throttle gives you complete control. Plunger-type reverse valve for one handed operation. Average air consumption is 4 cfm @ 90 psi. Ultimate torque: 425 ft.-lb. 1 year limited warranty.