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″.

3M 11137, Roloc Disc 361F, 50 YF-weight, TR, 1-1/2 in, Die R150S, 7000045094
3M 10455, Cloth Sheet 481W, 220, 9 in x 11 in, 7010294811
Dynabrade 53270 7" (180 mm) Dia. Right-Angle Disc Sander
3M 19769, Utility Cloth Sheet 314D, 9 in x 11 in P150 J-weight, 7000000357
3M 71361, 641WY 1/4" X 24", 1200 Mesh Diamond Cloth Belt, 7010534916
Dynabrade 11254 Contact Arm Ass'y, 4-3/4" Dia. x 1/2" W
Dynabrade 13509 Dynastraight Finishing Tool, Rear Exhaust, 6,000 RPM, 5/8" (16 mm) or 1" (25 mm) Dia. Arbor
3M 22396, Roloc Disc 361F, 36 YF-weight, TR, 1-1/2 in, Die R150S, 7000045091
Standard Abrasives 713066, PSA A/O Disc, 8 in x NH, 60, 7010370082
3M 18451, Scotch-Brite Heavy Duty Hand Pad 7440B, HP-HP, A/O Medium, 6 in x 9 in, 7000000715, 40 ea/Case
3M 16976, Scotch-Brite Light Cleansing Hand Pad 7445, HP-HP, Nepheline Syenite Super Fine, White, 6 in x 9 in, 7000000727, 60/Case
3M 04229, Scotch-Brite Hand Pad 7447B, HP-HP, A/O Very Fine, 6 in x 9 in, 7000027560, 60 ea/Case
Insize 6315, MICROMETER MEASURING FORCE DETECTOR, 6928640351143
3M 05791, Hookit Pad, 7000028382
Standard Abrasives 827600, Buff and Blend GP Power Pad, 6 in x 9 in, A VFN, 7010330610, 50 ea/Case 