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″.

Insize 0210-G260, INFRARED THERMOMETER (BASIC TYPE), -22 ?F~500?F/-30?C~260?C, 6974029773310
3M 70885, Sanding Belt, 9264NA-2, 3 in x 21 in, Fine, 120 grit, 7010312226, 2 per pack, 6 packs per case 