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1/4 40 NS 2 SET THREAD PLUG GAGE .25 GO NO GO P.D.'S = .2338 & .2309 QUALITY

YOU ARE PURCHASING THE PICTURED SET THREAD PLUG GAGE.THESE GAGES ARE USED FOR CALIBRATING THREAD RING GAGES ONLY! THEY ARE NOT USED FOR CHECKING THREADED HOLES IN A MACHINED PART!SOLD BY M & J TOOLING LLCDAYTON, OHIOPRODUCT SPECIFICATIONS...