General duty air-powered ratchets are used for maintenance and fabrication tasks. Air Consumption / 4 cfm Air Inlet / 1/4 in NPT Female Air Pressure / 90 psi Max. Air Pressure / 90 psi Min. Air Pressure / 90 psi Min. Hose Size / 3/8 in Exhaust Location / Bottom Drive Size / 1/2 in Square Retainer Type / Ball Detent Free Speed / 160 RPM Fastening Torque / 54 ft-lb Duty Rating / General Duty Overall Length / 11 in Side to Center / 1 1/2 in Features / Increased Durability Standards / All gov regulations and FDA certified Tool Weight / 2.8 lb