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...
Applicable for .001" or .0001" or .00005" graduation dial indicators.Optional accessory: Dial indicator or dial comparator, Setting ring (part no. 6313), Long handle (part no. 7352).Range: .7-1.4"