Dynabrade 98263 3/8" NPT Male Plug 
Dynabrade 97570 1/2" NPT Female Safety Coupler 
Insize 2187-250, ADJUSTABLE SNAP GAGE, 9.37-9.84″, 6928640314674
$952.34
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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