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ACME

1/4 16 ACME 2G LEFT HAND SET THREAD PLUG GAGE .25 GO NO GO P.D.'S= .2148 & .2043

YOU ARE PURCHASING THE PICTURED  ACME LEFT HAND 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...