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 4120-20N, METRIC THREAD RING GAGE, NO GO, M20x2.5, 6928640341823
$59.18
Measuring/ Inspection Instruments
Insize 4120-20, METRIC THREAD RING GAGE, GO, M20x2.5, 6928640341519
$71.83

Marson Kwikee 30200, Disposable Plastic Seat covers, 125 per pack, 7000125073
Insize 4120-20N, METRIC THREAD RING GAGE, NO GO, M20x2.5, 6928640341823 