Norbar Articles

Can I use my manual torque wrench to undo a bolt?

September 6, 2024

At Norbar Australia, we often receive a range of questions from our customers about the best practices for using torque tools. One of the most common questions is: “Can I use my manual torque wrench to undo a bolt?”

The short and simple answer is no. A manual torque wrench is a precise measuring instrument, intended solely for the purpose of tightening bolts to a specific torque. Whether you’re working with right-hand or left-hand threads, the torque wrench ensures that the bolt is tightened to the exact specifications required.

Why Shouldn’t You Use a Torque Wrench to Undo Bolts?

Using a manual torque wrench to undo bolts can compromise its accuracy and damage the tool. The torque wrench is calibrated to measure the torque applied when tightening a bolt, not for the forces involved in loosening one. Over time, using it for undoing can affect the calibration, leading to inaccurate readings and potential tool failure.

What Are the Alternatives?

If you need to undo a bolt, consider using one of the following tools:

  1. Manual Torque Multiplier: This tool provides increased torque output for loosening bolts without overexerting yourself.
  2. Ratcheting Bar: A sturdy, reliable option for manually undoing bolts, suitable for high-torque applications.
  3. Impact Driver: Ideal for quickly loosening bolts, particularly in heavy-duty settings.

These tools are specifically designed for the job, ensuring you maintain the accuracy and longevity of your manual torque wrench while effectively getting the task done.

Conclusion

While a manual torque wrench is an essential tool for achieving precise torque during tightening, it’s crucial to use the right equipment when it comes to loosening bolts. By following these guidelines, you can ensure your tools remain accurate and reliable for years to come. Got more questions? Stay tuned as we continue to address more of your frequently asked questions!

Does torque tool accuracy matter to you?

Call the Norbar team on +61 (08) 8292 9777