Criteria for gauge selection based on size?
Machine repeatability is the repeat positioning of the wheel slide, which is within 2 micron taken over 6 readings. Job size consistency depends on: For tolerance more than 12 micron on diameter gauge is not required. For Tolerance over 20 microns Cpk 1.33 is also achievable without gauge in condition that the size is checked and corrected on the mean dia.after every dressing.
