Proto Tool J138WP Air Impact Wrench 525 ft/lbs

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Item Number:J138WP
Line Code:PRO
Availability:In Stock
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Proto Tool J138WP 3/8'' Air Impact Wrench 525 ft/lbs

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  • Titanium housing helps to reduce weight, improve balance and ensure maximum durability.
  • Ergonomically designed handle-forward design improves balance and control, helping to reduce operator fatigue.
  • Robust twin hammer mechanism for efficient energy transfer and long service life.
  • Ambidextrous forward/reverse lever can be actuated with a single hand, even with gloves on.
  • Three position power regulator for forward rotation. Reverse rotation operates at maximum for highest breakaway torque.
  • Feather throttle for maximum operator control.
  • Side-fed, 6-vane air motor for maximum power and efficiency.
  • Machined motor housing reduces number of parts, creating precision alignment, reducing wear, increasing efficiency and simplifying maintenance.

The J138WP includes:

  • One (1) Proto J138WP 3/8" Drive Air Impact Wrench


  • 360° Rotating Air Inlet Fitting.
  • Titanium Exhaust Deflector and Muffler.
  • Integrated Tethering Capability in all Proto® Air Tools.
  • Optional ProtoIDTMAir Fitting for RFID Tracking Capability.

Tech Specs:

  • Drive Size [in]: 3/8
  • Breakaway Torque (Ft Lbs): 525
  • Blow Rate Forward (BPM): 1750
  • Average Air Consumption [cfm]: 4.4
  • Free Speed [RPMs]: 10500
  • Overall Length [in]: 6
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Proto Tool J138PB 3/8" Impact Protective Boot
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Proto Tool J138PB 3/8" Impact Protective Boot

  • Designed for use with Proto 3/8" Impacts
  • Fits your tool like a glove and protects it from the elements
  • Moisture resistant
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