3M 25774, Scotch-Brite Roloc Surface Conditioning Disc, TSM, 1-1/2 in x NH A MED, 7100014112, 200 per case 
Dynabrade 94980 1/4" Composite-Style Coupler, 1/4" Male 
Insize 4131-81, AMERICAN STANDARD THREAD PLUG GAGE, 8-32UNC, 6928640358920
$88.38
Class 2B.
Standard ANSI/ASME B1.2
Supplied with Go and No-Go gages together
Supplied with manufacturer inspection certificate.
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