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″.

Norton 66623325035 - 2" 120 Grit Fine Grade Aluminum Oxide Vortex Rapid Prep Green TR Non-Woven Surface Preparation Disc, 50 Each
Insize 4807, ANGLE GAGE SET, 6928640319341
3M 07053, General Purpose Sanding Sponge CP-040NA, Single Angle, 2-7/8 in x 4-7/8 in x 1 in, Fine, 7100110752
Dynabrade 78317 2" Dia. x 1" W x 1/4" Shank, Fine, NWN DynaBrite Wheel, 10/pack
3M 65487, Pro Grade Precision Ultra Durable Universal Hole Sanding Disc DUH560TRI-10I, 5 inch UH, 60, 7100202879, 10 per pack
Dynabrade 94990 1/4" Female Composite-Style Coupler with 1/4" Male Plug Assembly
3M 28713 ROLOC DISC PAD TR, HARD 4 IN 5/8-11 INTERNAL, 7010298961
3M 05535, Cubitron II Cloth Belt 981F, 4 x 132 in, 40+, YF-weight, Film-lok, 7100164954, 25 per case
Dynabrade 78176 2" Dia. Medium NWN VT DynaBrite TR Locking-Type Disc, 25/pack
3M 95725, Venture Tape Metal Building Facing Tape 1552CW, White, 72 mm x 45.7 m, 7010313505
Dynabrade 94960 1/4" Composite-Style Coupler, 1/4" Female
3M 26053, PPS Series 2.0 Adapter, Type S14, 7/16 Male, 14 Thread UNC, 7100135932
3M 26124, PPS Series 2.0 Type H/O Pressure Cup, Large/Standard (28 floz/22 fl oz, 828m/650 mL), 2/Case
3M 53619, High Performance Flatback Tape 2519, Tan, 72 mm x 110 m, 12 Rolls/Case, 7100246870
Dynabrade 91165 1/2" W x 13" L 60 Grit A/O DynaCut Belt, 50/pack
Dynabrade 52410 3" Dia. 7 Degree Offset Disc Sander, Front Exhaust, .7 HP, 15,000 RPM, 3/8"-24 Thread
Standard Abrasives 32953, PSA A/O Disc, 711880, 2 in x NH, 60, 7010310798
3M 26015, PPS Series 2.0 Adapter, Type S8, 12 mm Male, 1.0 mm Thread, 7100135931
3M 98312, Scotch-Weld Concrete Repair DP600NS, Gray, Non-Sag, 400 mL Duo-Pak, 7000046376, 6/case
3M 19795, Utility Cloth Roll 314D, P400 J-weight, 1-1/2 in x 20 yd, 7100081717
Standard Abrasives 712149, Aluminum Oxide Handy Roll, P100 J-weight, 1-1/2 in x 50 yd, 7010295370 