This question is prompted by another round-robin type study involving the calibration of thread plug gages, the results of which were predictable because similar studies over the past twenty years or so have produced similar results.
Nothing makes life easier than having a ‘master’ for the dimension(s) you have to measure. But a simple request for one with a dimension attached to it, for example, is not enough information to get something that will do what you want it to.
Higher tolerance “insurance” comes with a price tag.
January 8, 2014
There’s an old rule of thumb among suppliers of precision gages that tighter tolerances mean higher prices. This is understandable considering the extra effort involved working within such boundaries. But not all gage users understand this.