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″.

Insize 3232-3, BLADE MICROMETER, 2-3", 6928640327612
3M 22405, Roloc Disc 361F, P100 YF-weight, TR, 3 in, Die R300V, 7000045102
Dynabrade 78588 1/4" Dia. x 2" W x 1/8" Center Hole, 80 Grit, 100/pack
3M 64315, Cubitron II Depressed Center Grinding Wheel, T27, 7 in x 1/4 in x 7/8 in, 7100094062, 20 per case
3M 81356, Venture Tape White Aluminum Foil Tape 1558HT, 72 mm a 45.7 m, 5.4 mil, 7010335933
Dynabrade 51301 .5 hp Straight-Line Die Grinder
Dynabrade 79171 1" W x 30" L 80 Grit Ceramic DynaCut Belt, 50/pack 