3M 27778, Stikit Paper Disc Roll 426U, 150 A-weight, 5 in x NH, Die 500X, 7000144098, 175 discs per roll 
Insize 7382-211, 3-WIRES, .0285″/0.725mm, 6928640361999
$321.46
Used with standard outside micrometers with spindle .256″DIA to measure pitch diameter of screw threads.
Diameter accuracy: ?20_in. Cylindricity: 39_in.
Cylindricity: 1um. Hardness: HRC60.
Supplied with manufacturer inspection certificate.
Supplied with manufacturer inspection certificate.
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