CPT780 Features: -Roller clutch with external clutch adjustment.-Built-in quick change chuck .-Convenient forward/reverse valve .-Ideal for general repair and body shop work.-High speed: 1,800 rpm This pistol grip air screwdriver features 1/4" female hex chuck size, torque range: 25 - 44 in./lb. 8.25" in length and weighs 2.5 lbs.; handle exhaust directs air away from the work piece and operator. Sound dBA pressure: 98.3A - 108.3; average air consumption: 4 cfm; air inlet thread: 1/4" NPTF; minimum hose size: 3/8"; sound dBA: 98..-1/4"" Air Screwdriver. Warranty: -1 yr warranty on material and workmanship.