We often hear about calibration, but many do not know the importance of frequently opting for the service. A torque wrench being a very popular tool across all industries is frequently used to complete maintenance and shutdown operations. Regularly using the tool often impacts the accuracy of the tool and need to be re-calibrated to ensure it delivers precise torque outputs. In this article, we will define calibration, understand why we need to calibrate, and the frequency of calibration services.