3M 20911, PSA Cloth Disc 348D, 50 X-weight, 2 in x NH, Die 200P, 7000118871 
3M 26137, PPS Series 2.0 Adapter, Type S41, Trapezoidal Thread - QCC, 7100135947 
Insize 7321-T14, SCREW THREAD POINT, 13-9TPI/2-3mm, pair, 6928640348495
$38.59
internal thread (60? thread angle)
SCREW THREAD POINT, 13-9TPI/2-3mm, pair
For use with Screw Thread Microsmeter Series # 3281
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