Is it acceptable to use a torque wrench that has exceeded its re-calibration date?

Using a torque wrench that has exceeded its re-calibration date is not advisable, even if it appears undamaged or functions correctly. The primary purpose of re-calibrating a torque wrench is to ensure its accuracy and reliability in measuring torque. Over time and usage, the internal mechanisms of the wrench can become less accurate due to wear, environmental factors, and general wear and tear.

Despite a torque wrench looking undamaged or seemingly working fine, it may provide inaccurate torque settings, leading to potential safety issues, improper assembly, or malfunction of aerospace components. Ensuring that all tools, especially those critical in aerospace applications, are within their calibration dates is vital for maintaining safety standards and compliance with regulations. Therefore, it is essential to re-calibrate a torque wrench before its next use if it has exceeded its recommended calibration time. This practice helps verify that the wrench will produce dependable torque measurements, which is crucial for the integrity of assembled structures in the aerospace industry.