Compact pistol-grip air-powered impact wrenches (sometimes called stubby wrenches) have a shorter front-to-back length than standard pistol-grip impact wrenches, allowing for access to tight spaces. - They have higher torque and larger drive sizes than inline impact wrenches, but often have lower torque than full-size tools. - 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 / 52 cfm Air Inlet / 1/2 in NPT Air Pressure / 90 psi Max. Air Pressure / 90 psi Min. Air Pressure / 90 psi Min. Hose Size / 1/2 in Exhaust Location / Bottom Duty Rating / Industrial Duty Breakaway Torque / 2,000 ft-lb Fastening Torque / 1,400 ft-lb Free Speed / 4,100 RPM Impact Rated / Yes Impact Sound Level / 112 dB Impacts per Minute / 900 Number of Speed Settings / 3 Power to Weight Ratio / 100 ft-lb/lb Max. Bolt Capacity / 1 3/8 in Drive Size / 1 in Square Drive Type / Standard Retainer Type / Through Hole Clutch Style / Double Rocking Dog Tool Style / Compact Vibration Level / 18.2 m/sq sec Overall Length / 9 1/2 in Handle Material / Aluminum Housing Material / Steel Handle Type / Pistol Grip Tool Brand / Chicago Pneumatic Features / Industrial Quality And Dependability, Operator Comfort, Powerful Motor And Extremely Durable Clutch Includes / Side Handle Tool Weight / 20.0 lb Standards / EN ISO 11148-6:2013, ISO-28927-2