Force and Torque Set torque wrench calibration intervals from use, handling, checks, performance history, required accuracy, and assembly risk. Contents How Often Should a Torque Wrench Be Calibrated? Why Torque Wrench Calibration Matters How Often Should a Torque Wrench Be Calibrated? What Factors Affect a Torque Wrench Calibration Interval? What Can Cause a Torque Wrench to Drift? When Should a Torque Wrench Be Checked Before the Next Calibration? Does the Number of Uses Affect Calibration? Can a Torque Wrench Calibration Interval Be Extended? What Happens During Torque Wrench Calibration? What Are As-Found and As-Left Results? What Tolerance Should a Torque Wrench Meet? What Should a Torque Calibration Certificate Contain? How Often Should a Torque Wrench Be Calibrated? Updated: 29 August 2026 A torque wrench is used when the tightening torque applied to a fastener needs to be controlled. Calibration helps establish how closely the wrench indication or output agr...