3M 65489, Pro Grade Precision Ultra Durable Universal Hole Sanding Disc, DUH5120TRI-10T, 5 IN x UH, 120, 7100202877, 10 per pack 
3M 22397, Roloc Disc 361F, 60 YF-weight, TR, 1-1/2 in x NH, 7000045097 
Dynabrade 97566 1/4" Safety Coupler, Female 
Insize 4131-41, AMERICAN STANDARD THREAD PLUG GAGE, 4-40UNC, 6928640358906
$97.05
Class 2B.
Standard ANSI/ASME B1.2
Supplied with Go and No-Go gages together
Supplied with manufacturer inspection certificate.
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