3M 21639, PSA Cloth Disc 348D, 36 X-weight, 6 in x NH, Die 600Z, 7000148149 
3M 26137, PPS Series 2.0 Adapter, Type S41, Trapezoidal Thread - QCC, 7100135947 
Insize 4120-27N, METRIC THREAD RING GAGE, NO GO, M27x3, 6928640341854
$64.21
Go and No-Go gages are supplied separately.
Class 6g.
Standard ISO1502.
Supplied with manufacturer inspection certificate.
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3M 26120, PPS Series 2.0 Adapter, Type S28, 17.5 mm Female, 19 TPI Thread, 7100135956
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