These pistol-grip air-powered impact wrenches have a square drive and a standard anvil length. - They are full-size impact wrenches with high torque output. - The pistol grip has a trigger that is pressed to activate the wrench. - Pistol grips provide ergonomic handling when working on vertical surfaces from the user's waist to chest, horizontal surfaces at mid-thigh or lower, and horizontal surfaces directly overhead. Air Consumption / 24 cfm Air Inlet / 1/4 in NPT Air Pressure / 90 psi Max. Air Pressure / 100 psi Min. Air Pressure / 90 psi Min. Hose Size / 3/8 in Exhaust Location / Bottom Duty Rating / Industrial Duty Breakaway Torque / 780 ft-lb Fastening Torque / 550 ft-lb Free Speed / 11,000 RPM Impact Rated / Yes Impact Sound Level / 94 dB Impacts per Minute / 1,250 Number of Speed Settings / 4 Power to Weight Ratio / 200 ft-lb/lb Max. Bolt Capacity / 1/2 in Drive Size / 1/2 in Square Drive Type / Standard Retainer Type / Pin Detent Clutch Style / Twin Hammer Tool Style / Full-Size Vibration Level / 13.3 m/sq sec Overall Length / 7 1/2 in Handle Material / Composite Housing Material / Composite Handle Type / Pistol Grip Tool Brand / Ingersoll Rand Features / Durability, Reliability Tool Weight / 3.9 lb Standards / ISO 11148, ISO 15744, ISO 28927