3M 76622, Roloc Disc 777F, 36 YF-weight, TR, 1 in, Die R100N, 7000045618 
Insize 2435-E202, BORE GAGES, measuring depth 20″, range .47-.79″, 6928640391187
$3,431.01
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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