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Pressure-Feed lubrication System automatically greases the impact mechanism.

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Pressure-Feed lubrication System automatically greases the impact mechanism. Exclusive TwinHammer Plus impact mechanism. Pressure-feed lubrication. Adjustable power regulator. Easy to service two-piece construction. Contoured handle for comfort and control.

Whether you're a vehicle hobbyist or professional mechanic, the 231C can help simplify jobs like rotating tires or performing basic vehicle maintenance. It comes equipped with an exclusive Twin Hammer Plus impact mechanism for 1/2-inch drive, and it boasts an average air consumption of 4.2 CFM. And whether you're removing lug nuts or stubborn bolts, pressure-feed lubrication ensures ease of use.

This compact tool delivers a maximum torque of 425 ft./lbs. and provides an impressive speed of 8,000 RPM (1,200 BPM) for fast, efficient performance.

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  • Exclusive impact mechanism
  • Pressure-feed lubrication
  • Adjustable power regulator
  • Easy to service two-piece construction
  • Contoured handle for comfort and control
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Adjustable Power Regulator for Optimum Results

To help maintain consistent results, the 231C's adjustable power regulator provides variable power in one direction and full power in the opposite direction, which gives you the freedom to set the power independently.

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Compact and Lightweight for All-Day Use

Measuring only 7.2 inches in length and weighing just 5.3 pounds, the 231C is compact and lightweight enough to minimize stress on your wrists and hands. It's also easy to take with you as you move around the shop or jobsite.

Caring for the 231C is as simple as can be thanks to the easy-to-service, two-piece construction and the contoured handle that ensures comfort and control, even during all-day jobs.

For added convenience, the 231C arrives fully lubricated and ready to go right out of the box.

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What's in the Box

  • 231C Impact Wrench
  • Instruction manual
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Frequently Asked Questions

  • What size compressor is required to break harmonic balancer bolts loose using this tool?

    This tool is intended to work off no more than a nominal 90 psi, but given frictional losses in the airhose, you can safely set your compressor to 100 or 110 psi without doing damage. Harmonic balancer bolts may come in various sizes, so an answer is difficult - but I can tell you that I've loosened overtightened wheel nuts (probably run up to 100 lb-ft of torque), though only after boosting compressor output to 100 psi. As for SCFM, keep in mind that such tools are heavy users of compressed air, so continuous running will cause rapid cycling of the compressor, unless you have a commercial/industrial size unit.

  • What is the PSI on this Air Impact Wrench?

    The maximum recommended PSI for use with this wrench is 90 psi.

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