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″.

Dynabrade 52949 Ring Gear, Double Planetary, PG Drill
Dynabrade 57244 Lever
Dynabrade 95886 Washers For Vacuum Shroud (57737)
Dynabrade 11078 Contact Wheel Ass'y, 5/8" Dia. x 3/8" W x 3/8" I.D., Crown Face, 70 Duro Rubber
Dynabrade 90614 3" W x 10-11/16" L 80 Grit A/O DynaCut Belt, 10/pack
Dynabrade 82560 1/2" W x 18" L 80 Grit Ceramic DynaCut Belt, 50/pack
3M 93005, Project Safety Kit, Project H1-DC, 7100171378
Dynabrade 07109 Vane Set (5pk)
Dynabrade 82566 3/4" W x 18" L 120 Grit Ceramic DynaCut Belt, 50/pack
3M 16219, PPS Liner Dispenser: Large, Standard, or Midi, 7100041780 