3M 5677, DISC PAD HOLDER 914, 4 IN X 1/8 IN X 3/8 IN M14-2.0 INTERNAL, 7010299278 
Dynabrade 01185 Vane Set (4pk) 
Insize 3294-1, NON ROTATING SPINDLE DISK MICROMETER, 0-1″, 6928640328152
$264.28
Graduation .0001″.
Measure root tangent length of gear.
Non-rotating spindle.
Ratchet stop.
Supplied with setting standards
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