3M 28476, Disc pad Hub, 2-1/2 in 5/8-11 Internal Low Profile, 7000045288 
3M 45093, Roloc Disc Pad TR, Extra Hard 3 in 1/4-20 Internal, 7000045285 
Insize 2422-E510, BORE GAGE, 11.0-20.1″, 6928640357114
$5,454.55
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: 11.0-20.1″
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