3M 26120, PPS Series 2.0 Adapter, Type S28, 17.5 mm Female, 19 TPI
Thread, 7100135956 
Insize 3203-8A, OUTSIDE MICROMETER, 7-8″, 6928640327148
$111.72
Graduation .0001″.
Carbide measuring faces.
Ratchet stop type
Supplied with setting standards (except 0-1″).
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