Standard Abrasives 850034, Unitized Wheel Steel Screw Mandrel, 7/8 in x 1/4 in Shank, 7000121879 
Insize 4112-A3, INDIVIDUAL STEEL GAGE BLOCK, 3″, grade 0, 6928640353857
$82.03
Made of alloy steel.
Meet ASME B89.1.9.
Supplied with manufacturer inspection certificate.
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