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
Measuring/ Inspection Instruments
Insize 4120-18N, METRIC THREAD RING GAGE, NO GO, M18x2.5, 6928640341816
$57.62
Measuring/ Inspection Instruments
Insize 4120-14, METRIC THREAD RING GAGE, GO, M14x2, 6928640341489
$62.82
Measuring/ Inspection Instruments
Insize 4120-2, METRIC THREAD RING GAGE, GO, M2x0.4, 6928640341342
$72.96

Norton 66254414832 - 3" X 1/4" X 1/4" Vortex Rapid Blend Unified Wheel, 5am U2305, 40 Each
Insize 4209-6, LONG HANDLE TELESCOPING GAGE, 3-1/2 ~ 6", 6928640311581
3M 26120, PPS Series 2.0 Adapter, Type S28, 17.5 mm Female, 19 TPI
Thread, 7100135956 