Ans: Yes, like any measuring instrument, torque wrenches have a standard error or tolerance. This is the acceptable range of deviation from the true or target torque value. The standard error of a torque wrench depends on its quality, accuracy, and range.
Most torque wrenches have a standard error of ±3-5% of the indicated torque value. This means that if the torque wrench is set to apply 100 Nm of torque, the actual torque applied could be anywhere between 95-105 Nm.
However, high-precision torque wrenches may have a lower standard error of ±1-2%. It is important to note that the standard error of a torque wrench can be affected by various factors, such as the angle of the wrench, the condition of the fastener and joint, the temperature, and the operator’s technique.
Read Also: How To Fix A Torque Wrench In 11 Easy Steps
To ensure the most accurate torque values, it is recommended to follow the manufacturer’s instructions and perform regular calibration and maintenance of the torque wrench.