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.

3M 26015, PPS Series 2.0 Adapter, Type S8, 12 mm Male, 1.0 mm Thread, 7100135931
Insize 7232, SCRIBER, 6928640320088
3M 86802, Cubitron II Stikit Film Disc 775L, 80+, 5 in x NH, Linered w/Tab, Die 500X, 7100048736, 250 per case
3M 26109, PPS Series 2.0 Adapter, Type S23, 1/4 Female, 18 Thread NPS, 7100135941 