Chicago Pneumatic 780 Air Screwdriver 1,800 RPM. External clutch adjustment. Cushion clutch. Built-in quick change chuck. Handle Exhaust directs air away from work piece and operator. Convenient forward/reverse valve. Applications: general repair, body shops. Free Speed: 1800 rpm. Specifications: Chuck Size - 1/4", Free Speed - 1,800 RPM, Length - 8-1/4", Average Air Consumption - 4CFM, Air Inlet NPTF - 1/4", Min. Hose Size - 3/8", Working Torque Range - 13-44 FT LBS.