Dynabrade 50107 2" Dia. Disc Backup Pad, 1/4"-20 Thread, PSA 
Insize 3220-2, INSIDE MICROMETER, 1-2″, 6928640328558
$124.77
Graduation .001″
Ratchet stop.
Carbide measuring faces.
Optional accessary: setting ring (part no. 6313), micrometer stand and clamp (part no. 6301 and 6301-1).
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