3M 80510, Roloc Disc 777F, P120 YF-weight, TR, 1 in, Die R100N, 7000045622 
Insize 2435-E122, BORE GAGES, measuring depth 20″, range .32-.47″, 6928640390869
$4,712.66
Applicable for .001″ or .0001″ or .00005″ graduation dial indicators.
Carbide contact point and anvil.
Optional accessory: dial indicator or dial comparator, setting ring.
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Insize 0120-IM24, INDUCTIVE MOISTURE METER, 0~100%, 6974029776588
$207.68