Working Plug Gages for Checking Threaded Holes

HEMCO

2.548 18 NF 2B N13 LOCKNUT THREAD PLUG GAGE GO NO GO P.D.'S = 2.5119 & 2.5188 - DW26675BN3

1 3/4 4 NA 2G ACME THREAD PLUG GAGE 1.75 4.0 GO ONLY P.D. = 1.6250 INSPECTION - DW26665BN3

HEMCO

7/16 14 UNC 2B LEFT HAND THREAD PLUG GAGE .4375 GO NO GO P.D.'S = .3911 & .3972 - DW26664BN3

NORTH AMERICAN

1/4 24 UNS SPL SPECIAL THREAD PLUG GAGE .25 .250 GO NO GO P.D.'S = .2229 & .2277 - DW26658BN3

SHOP MADE 1/2 13 LEFT HAND THREAD PLUG GAGE .5 .50 .500 .5000 L.H. GO AND NO GO - DW26657BN3

HEMCO

1 1/4 11 1/2 UNS SPECIAL THREAD PLUG GAGE 1.25 GO NO GO P.D.'S = 1.2030 & 1.2070 - DW26652BN3

SHEFFIELD

7/8 18 NS 3 THREAD PLUG GAGE .875 .8750 GO NO GO P.D.'S = .8392 & .8428 CHECK - DW26651BN3

1 1/8 20 3B LEFT HAND THREAD PLUG GAGE 1.125 NO GO ONLY P.D. = 1.0969 L.H. CHECK - DW26649BN3

VERMONT GAGE

5 40 UNC 2B VERMONT THREAD PLUG GAGE #5 .125 GO NO GO P.D.'S = .1088 & .1121 - DW26646BN3

HEMCO

1 3/16 18 UNJEF 3B THREAD PLUG GAGE 1.1875 GO NO GO P.D.'S = 1.1514 & 1.1561 - DW26641BN3

SHOP MADE 1 1/8 12 THREAD PLUG GAGE 1.125 1.1250 1 1/8"-12 GO AND NO GO - DW26574BN3

SHOP MADE 1 1/16 16 THREAD PLUG GAGE 1.0625 1 1/16"-16 GO AND NO GO - DW26573BN3