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1/2 20 NF 3 THREAD RING GAGES .5 .50 .500 GO NO GO P.D.'S = .4675 & .4649 UNF-3 - DW24401RD

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1/4 18 NPT L1 PIPE THREAD RING GAGE .25 .250 .2500 N.P.T. NATIONAL TAPER ANPT - DW3893BURL

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1/4 20 NC 2B EXTRA LONG THREAD PLUG GAGE .25 GO NO GO P.D.'S = .2175 & .2223 - DW15321LVR

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1/4 20 NC 2B EXTRA LONG THREAD PLUG GAGE .25 GO ONLY P.D. = .2175 UNC-2B OR 3B - DW17611LVR

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1/4 20 NC 3 THREAD RING GAGE .25 .250 .2500 NO GO ONLY P.D. = .2149 UNC-3 CHECK - DS0717BU

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1/4 28 NF 3 SET THREAD PLUG GAGE .25 .250 .2500 GO NO GO P.D.'S = .2258 & .2236 - DW18693RD

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1/4 28 NF 3 THREAD PLUG GAGE .25 .250 GO NO GO P.D.'S = .2268 & .2290 UNF-3 - DT1415BU

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1/4 28 UNF 3A SET THREAD PLUG GAGE .25 .250 .2500 GO ONLY P.D. = .2268 CHECK - CS3973MS

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

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1/4 48 NS 2A LEFT HAND DOUBLE LEAD THREAD RING GAGE .25 GO ONLY P.D.= 2357 L.H.

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1/4 48 NS 2A LEFT HAND DOUBLE LEAD THREAD RING GAGE .250 NO GO ONLY P.D. = .2330

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1/8 27 A & N 6 STEP PIPE THREAD RING GAGE .125 A.N. CREST CHECK 1/8-27 SIX-STEP