3M 11137, Roloc Disc 361F, 50 YF-weight, TR, 1-1/2 in, Die R150S, 7000045094 
Insize 4120-52N, METRIC THREAD RING GAGE, NO GO, M52x5, 6928640341939
$219.53
Go and No-Go gages are supplied separately.
Class 6g.
Standard ISO1502.
Supplied with manufacturer inspection certificate.
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