Dynabrade 93618 1" Dia. x 3/8", 3-48 Female Center Thread, 150 Grit A/O, 8 Ply, J-DynaCut Cross Pad, 100/pack 
Insize 3282-3, DISK MICROMETER, 2-3″, 6928640328107
$167.23
Graduation .0001″.
Measures root tangent length of gear.
Ratchet stop.
Supplied with setting standards (except with 0-1″).
Spindle lock.
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