Dynabrade 22092 2-3/4" x 17" Hand Sanding Block 
Insize 3282-4, DISK MICROMETER, 3-4″, 6928640328114
$210.60
Graduation .0001″.
Measures root tangent length of gear.
Ratchet stop.
Supplied with setting standards (except with 0-1″).
Spindle lock.
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