"This Chicago Pneumatic 1/2in. heavy-duty air impact wrench with Dyna-Pact oil bath clutch to deliver smooth operation and extended durability. Delivers power and economy for general repair, transmission work, exhaust systems and body shops. Reversible Yes, Max. Reverse Torque ft.-lbs. 425, Inlet Size in. 1/4, Drive in. 1/2, Tool Weight lbs. 5.1, Variable Speed Yes, Min. Hose Size in. 3/8, Tool Length in. 7 1/2, Speed - No Load RPM 8,400, Working Torque ft.-lb. 25-310, Max. Torque ft.-lbs. 425, CFM at Load 15, Average Air Consumption CFM 3.7, Standard Bolt Capacity in. 9/16. One-hand pushbutton forward/reverse power regulator 4 positive power settings Ultimate power in reverse Handle exhaust with 360 air inlet swivel Applications Overall automotive service, body shop, farm, light truck work, etc."