1 1/4 - 12

GTD

1 1/4 12 NF THREAD PLUG GAGE 1.25 GO NO GO P.D.'S = 1.1964 & 1.1978 UNF CHECK - DW8314BU

NELCO

1 1/4 12 UNF 3B THREAD PLUG GAGE 1.25 GO NO GO P.D.'S = 1.1962 & 1.2019 NF-3B - DW8229BU

NATIONAL GAGE

1 1/4 12 NA 6C LEFT HAND MODIFIED THREAD PLUG GAGE 1.25 NO GO ONLY P.D. = 1.2254 - DW6265RD

GSG

1 1/4 12 UNJF 3B PREPLATE THREAD PLUG GAGE 1.25 GO NO GO PD'S = 1.1983 & 1.2027 - DW3660RD

NATIONAL GAGE

1 1/4 12 NA 6C ACME MODIFIED LEFT HAND THREAD PLUG GAGE 1.25 GO NG 1.1804 1.1855 - DW3521RD

1 1/4 12 NF THREAD PLUG GAGE 1.25 GO ONLY P.D. = 1.1999 1.250-12 INSPECTION TOOL

1 1/4 12 UNJS BEFORE PLATE THREAD PLUG GAGE 1.25 GO NO GO P.D.'S = 3B & 1.1983