3M 12066, General Purpose Sanding Sponge CP002-12P, Block, 3-3/4 in x 2-5/8 in x 1 in, Medium, 7100173930, 12/pack 
Insize 4120-7, METRIC THREAD RING GAGE, GO, M7x1, 6928640341427
$55.47
Go and No-Go gages are supplied separately.
Class 6g.
Standard ISO1502.
Supplied with manufacturer inspection certificate.
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