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 4120-20, METRIC THREAD RING GAGE, GO, M20x2.5, 6928640341519
$71.83

3M Finesse-it Microfinishing Film Disc Roll 268L, 1-7/16 in x NH 7 Micron Scalloped, 7100040582
3M 22394, Roloc Disc 361F, 50 YF-weight, TR, 3 in, Die R300V, 7000045096
3M 45712, Cubitron II Hookit Cloth Disc 947A, 60+ X-weight, 3 in x NH, D/F 3HL, Die 300BE, 7100113119
3M 29611, 641WY 1/4" X 24", 100 Mesh Diamond Cloth Belt, 7010534832
Insize 4120-16N, METRIC THREAD RING GAGE, NO GO, M16x2, 6928640341809 