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″.
setting ring when supplied may be .20008″.

Dynabrade 98272 1/2" NPT Female Plug
3M 97419, Aluminum Foil Tape 3380, Silver, 48 mm x 45 m, 3.25 mil, 7000049613
3M 26120, PPS Series 2.0 Adapter, Type S28, 17.5 mm Female, 19 TPI
Thread, 7100135956
Insize 7332, SPINDLE LIFT KNOB, 6928640312649
3M 07053, General Purpose Sanding Sponge CP-040NA, Single Angle, 2-7/8 in x 4-7/8 in x 1 in, Fine, 7100110752
Standard Abrasives 877059, Unitized Mounted Point, 732 A3 x 1/4 in, 3M 7010310345
3M 26022, PPS Series 2.0 Adapter, Type S12, 10 mm Male, 1.0 mm Thread, 7100135943
3M 05068, Cubitron II Stikit Film Disc 775L, 400+, 5 in x NH, Linered w/Tab, Die 500X, 7100145364, 250 per case 