Torque Wrench Calibration

[planenut]

Originally Posted by T-Cut

How did you calibrate the luggage scale? Calibration against a standard implies that the standard is accurate. That's not so easy in a DIY situation. All you can do is calibrate the tool using first principles, applying a known load at a measured distance to create a calculable moment/torque. Clearly, the load/weight must be 'accurate' as well as the measurement. I reckon a low/medium priced tool that's accurate to within 10% of the indicated value is pretty good. You don't need an NPL certificate for a car tool.


TC

Well obviously I didn't.