Dynabrade 51857 .7 hp Trim Router (Complete), 20,000 RPM, 1/4 Collet 
Insize 2187-152, ADJUSTABLE SNAP GAGE, 5.75-5.98″, 6928640314599
$399.45
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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