Chicago Pneumatic 886 3/8" General Duty Air Ratchet. Compact head design allows greater flexibility in tight areas. Easy to grip reverse lever for simple directional changes. Hardened gears allow greater durability over other economically priced ratchets. Applications - installing or removing spark plugs, radiators, water pumps, and exhaust systems. Ultimate torque by hand - 125 ft lbs. Specifications: square drive - 3/8", standard bolt size - 3/8", cfm - 4, hose size - 3/8", speed - 160 rpm, torque range - 10 to 50 ft lbs, ultimate torque by hand - 125 ft lbs.