Dynabrade 53533 Cone or Plug Grinder (Triple Extension) 
Dynabrade 11684 Dynabelter Contact Arm Assembly 4" DIA X 5/8" W., 40 Duro Serrated 
Dynabrade 10690 Filter/Regulator/Lubricator, FRL40, 1/2" NPTAssy. 
Insize 2187-95, ADJUSTABLE SNAP GAGE, 3.50-3.74″, 6928640314506
$238.28
Used as Go/No-Go gage by setting upper and lower limits.
Flatness of anvil: 59_in.
Parallelism between tips and anvil: range 0-1.26″: 118_in,
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