3M 22394, Roloc Disc 361F, 50 YF-weight, TR, 3 in, Die R300V, 7000045096 
Insize 4112-BD6, INDIVIDUAL STEEL GAGE BLOCK, .6″, grade AS-1, 6928640353567
$28.91
Made of alloy steel.
Meet ASME B89.1.9.
Supplied with manufacturer inspection certificate.
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