For zero setting of inside micrometers, three points internal micrometers and bore gages.
Deviation is the difference between the ordered size and the size marked on the setting ring when supplied.
For example, the ordered size is .2”, the size marked on the setting ring when supplied may be .20008″.
Related products
Measuring/ Inspection Instruments
Insize 4120-12, METRIC THREAD RING GAGE, GO, M12x1.75, 6928640341472
$55.97

3M 50730, PPS UV Standard Lid & Liner Kit, Standard (22 fl oz, 650
mL), 125 Micron Filters, 7100067511
Insize 4120-11, METRIC THREAD RING GAGE, GO, M11x1.5, 6928640341465 