How Do I Calibrate and Maintain My Torque Wrench?

Proper calibration and maintenance are essential for ensuring the long-term accuracy and reliability of your torque wrench. Following these guidelines will help you get the most out of your tool.

Calibration: The Key to Accuracy

For precise calibration, always refer to the specific, step-by-step instructions provided in the user manual that came with your torque wrench.

In general, the calibration process involves comparing the wrench's output against a certified torque standard and making adjustments if it falls outside the acceptable tolerance. Due to the need for specialized equipment and a controlled environment, we recommend the following:

Professional Calibration: For guaranteed accuracy, we strongly advise having your torque wrench calibrated periodically by an accredited calibration laboratory. The general industry recommendation is to calibrate your tool every 5,000 cycles or every 12 months, whichever comes first. However, this interval should be shorter if the wrench is used frequently, subjected to heavy loads, or dropped.

Essential Maintenance for Longevity

Regular care will significantly extend the life of your torque wrench.

Always Store at the Lowest Setting: After every use, always reduce the torque setting to the lowest value on the scale. This relieves tension on the internal spring, which is critical for maintaining long-term accuracy. Never store the wrench at a high setting.
Keep it Clean: Wipe down the wrench with a clean, dry cloth after use. For a deeper clean, use a cloth lightly dampened with a mild solvent. Avoid harsh chemicals that could damage markings or seals.
Lubricate Occasionally: Apply a small amount of light oil to the moving parts and the thread of the adjustment mechanism periodically to prevent corrosion and ensure smooth operation.
Handle with Care: Avoid dropping the wrench or using it as a hammer, as shocks can compromise its calibration. Do not use cheater bars, as this can permanently damage the tool.
Use it Correctly: Apply force smoothly and steadily to the handle. Do not use the wrench to break loose frozen bolts, as this is an impact task for a breaker bar.

Summary of Best Practices:

For DIY Checks: Follow your user manual.
For Certified Accuracy: Use a professional calibration service annually or after 5,000 cycles.
After Each Use: Clean it and always store it at its lowest setting.

For detailed specifications or to inquire about our calibration services, please contact our technical support team. We are here to help ensure your tools perform at their best.