The accuracy for a torque wrench can be stated in terms of Full Scale (FS) or Indicated Value (IV). There is a big difference in result as full scale accuracy indicates the allowable error over the full-scale range of the tool. Indicated value accuracy indicates allowable error at the set point on the wrench. Indicated value stated wrenches are more accurate, especially on the lower end of the range. It is important to determine if the accuracy needed for an application can be obtained with the torque wrench selected. The table shows the allowable tolerance for Full Scale vs. Indicated Value accuracy.
In the table below, it can be determined that Full Scale accuracy is less accurate than Indicated Value as the tolerance against the scale varies from 5% to 50%, whereas the Indicated Value Accuracy is 5% at each value.
Mountz Inc. has been a trusted supplier of torque tools and related products since 1965. Our tools are built to the highest standards of quality and designed for long-lasting reliability. In addition, our two certified service centers can test and calibrate almost any tool. For more information on our products, download our brochure. To inquire about pricing, request a quote or schedule an appointment. To learn more about calibration intervals, ask one of our experts.
