3M 21758, Scotch-Brite Roloc Pro Brake Hub Cleaning Disc Kit, 7100176090 
Insize 3292-3, HUB MICROMETER, 2-3″, 6928640328428
$166.41
Graduation .0001″.
Measure hub thickness and shoulder inside a bore.
Ratchet stop.
Carbide measuring faces.
Supplied with setting standards (except 0-1″).
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