Master Mechanic 1202t202 Composite Air Impact Wrench, 820 Ft. Lbs, 1/2" This air impact wrench has a lightweight composite body to reduce strain. The composite impact wrench delivers 820 ft. lbs of bolt breakaway torque to get tough jobs done fast. Twin-hammer impact mechanism for high torque with less vibration. 1/2" 820 ft. lbs max torque 8500 no load RPM 4.6 CFM at 90 PSI average air consumption Twin-hammer impact mechanism for high torque with less vibration 1/4" air inlet 3/8" minimum hose. Features 1/2" 820 ft. lbs max torque 8500 no load RPM 4.6 CFM at 90 PSI average air consumption Twin-hammer impact mechanism for high torque with less vibration USA SHIPPING estimates delivery times and we work to get your item to you as quickly as possible and within those times, but please know it may take slightly longer than the estimate.