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 95843 Dynabrade Air Lube 10W/NR, 1 Gallon
Dynabrade 18426 Vane Set (4pk)
Insize 4120-14, METRIC THREAD RING GAGE, GO, M14x2, 6928640341489
Dynabrade 95746 3/8" NPT Speed Regulator
Dynabrade 94991 1/4" Female Composite-Style Coupler with 1/4" Female Plug Assembly
Dynabrade 78424 4-1/2" Dia. x 3/8" Medium DynaBrite Surface Conditioning Disc, 25/pack
3M 22404, Roloc Disc 361F, 80 YF-weight, TR, 3 in, Die R300V, 7000045100
3M 47838, EMI Copper Foil Shielding Tape 1181, 23 in x 18 yd (58.42 cm x 16.5 m), 7000058121 