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Gearless Type Air Impact Wrench ST-IW4140

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Gearless Type Air Impact Wrench ST-IW4140
Key Features
  • Square Drive: 1/2″
  • Free Speed (RPM): 6500
  • Max Torque: 300 ft-lb


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  • 360 degree Adjustable Air Exhaust Deflector
  • Rubber-made Protective Sleeve
  • Sensitive trigger for multi speed control
  • Only 3.46″ in head height
  • Gearless power transit design
  • One-piece back cover design
  • Lightweight
  • Powerful Torque
  • Square Drive (inch): 1/2
  • Free Speed (RPM): 6500
  • Max Torque: 300 ft-lb (407 nm)
  • Air Inlet (PT): 1/4″
  • Air Hose (ID): 3/8″
  • Air Consumption: 14 cfm (400 l/min)
  • Overall Length: 9.75 in (248 mm)
  • Net Weight: 3.09 lbs (1.4 kgs)

This Gearless Type Air Impact Wrench ST-IW4140 is designed for small or medium engine bays and under lift nut tightening and loosening. The ST-IW4140 has a 1/2″ square drive and the built in jumbo hammer impact mechanism can deliver up to 300 ft-lbs in maximum torque power. There is a number-visible, reverse/forward switch knob that has three power settings in the forward motion and one full power setting in reverse.