Norton 66254497067 - 2" X 1/4" 100 - 150 Grit Medium Grade Aluminum Oxide Vortex Rapid Blend Blue TR Non-Woven Abrasive Disc, 25 Each 
3M 45093, Roloc Disc Pad TR, Extra Hard 3 in 1/4-20 Internal, 7000045285 
Insize 4789-3E, CONCENTRICITY GAGE, 6928640358302
$1,892.39
Applicable diameter .039″ DIA~.984″ DIA
Accuracy .00008″.
Optional accessory: dial test indicator, mini magnetic stand (part no. 6224-40E).
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Insize 6140, DEPTH BASE ATTACHMENT, suitable for calipers with beam width (w) .630″, 6928640303579
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