Common Torque Wrench Mistakes and How to Avoid Them

Torque wrenches are essential tools for anyone working on cars, bikes, or machinery where bolt tightness matters. Whether you're torquing lug nuts, cylinder heads, or brake components, precision is key.

But even seasoned users make common mistakes that can lead to stripped threads, under-tightened bolts, or broken tools. In this guide, we’ll break down the most frequent torque wrench errors—and how to avoid them.

1. Not Resetting the Torque Wrench After Use

The Mistake:
Many people leave the torque setting engaged after they finish using the tool. This keeps tension on the internal spring and throws off future torque accuracy.

The Fix:
Always dial the torque wrench back to its lowest setting (but not below zero) before storing it. This keeps the calibration accurate over time.

2. Using the Wrench to Loosen Bolts

The Mistake:
A torque wrench is for tightening—not loosening. Using it to break loose bolts can damage the internal mechanism.

The Fix:
Use a standard ratchet or breaker bar to loosen bolts. Switch to the torque wrench only when it's time to tighten to spec.

3. Not Calibrating the Wrench Regularly

The Mistake:
Over time, even the best torque wrenches lose accuracy. If yours hasn’t been calibrated in years (or ever), you could be over- or under-tightening bolts.

The Fix:
Have your torque wrench professionally calibrated at least once a year—or more often if you use it frequently. Here at Torque Medic we offer this service!

4. Ignoring Clicks or Beeps

The Mistake:
Click-style and digital torque wrenches signal when you've reached the desired torque. Ignoring or not recognizing the click can result in over-tightening.

The Fix:
Stop applying pressure as soon as you hear or feel the click. Practice with scrap bolts if you're unsure of the click’s feel.

5. Applying Torque Too Quickly

The Mistake:
Jerking or fast movements can cause inconsistent torque readings. This results in uneven tightening and possible part failure.

The Fix:
Apply slow, steady pressure when using a torque wrench. Let the tool do the work gradually.

6. Using the Wrong Torque Specs

The Mistake:
Guessing or using “feel” instead of actual torque specifications can be dangerous—especially on brakes, suspension, or engine components.

The Fix:
Always check your vehicle or equipment’s service manual for the correct torque specs. If you’re unsure, look it up online from a reputable source.

7. Storing the Wrench Improperly

The Mistake:
Leaving a torque wrench in a humid garage, tool pile, or rolling around in a trunk can ruin it.

The Fix:
Store your torque wrench in its original case, in a dry, clean environment. Keep it out of extreme temperatures to protect internal components.

Final Thoughts

A torque wrench is a precision tool—not just another ratchet. When used correctly, it ensures safety, prevents damage, and saves money. By avoiding these common mistakes, you’ll extend your wrench’s life and improve the quality of your work.

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