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 95990 Wet Tank Assembly
3M 06725, Moisture Resistant Protective Sheeting, 06725, 16 ft x 250 ft (4.88m x 76.2 m), 1 roll per case, 7100080400
Dynabrade 63604 RaptorVac VacuumHead Replacement for 61204 & 61205 