What method is utilized to check the accuracy of torque tools?

Calibration is the method used to check the accuracy of torque tools, as it involves comparing the tool's output against a known standard or reference. This process ensures that the torque tool operates within specified limits and provides precise readings when applied to fasteners.

During calibration, the torque tool is subjected to controlled testing environments where specific torque values are applied. The readings taken from the tool are measured and compared to those from a reference tool or gauge, which has been verified for accuracy. If discrepancies are found, adjustments can be made to bring the tool back into the acceptable range of performance.

Regular calibration is vital for maintaining the reliability and effectiveness of torque tools, especially in critical applications like assembly in automotive or aerospace industries, where improper torque can lead to failure or safety issues. This method not only validates the performance of the tool but also helps identify any drift or wear that might affect its functionality over time.