3M 10116, Synthetic Steel Wool Pads, 10116NA, #2 Medium, 2 in x 4 in, 7000047708 
Insize 4112-CD139, INDIVIDUAL STEEL GAGE BLOCK, .139″, grade AS-2, 6928640352973
$20.62
Made of alloy steel.
Meet ASME B89.1.9.
Supplied with manufacturer inspection certificate.
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