3M 06536, Scotch Steel Gray Masking Paper, 06536, 36 in x 1000 ft, 1 per case, 7000045443 
Insize 4112-AD55, INDIVIDUAL STEEL GAGE BLOCK, .55″, grade 0, 6928640353529
$39.16
Made of alloy steel.
Meet ASME B89.1.9.
Supplied with manufacturer inspection certificate.
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