3M 76632, Roloc Disc 777F, 50 YF-weight, TR, 3 in, Die R300V, 7000045628 
Insize 2310-30FA, METRIC DIAL INDICATOR, 30mm, graduation 0.01mm, flat back, 6928640312526
$116.41
Supplied with limit pointers and bezel clamp.
Optional accessory: backs, contact points.
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