1 1/2 - 6

SHEFFIELD

1 1/2 6 NC 3 SET THREAD PLUG GAGE 1.5 GO NO GO P.D.'S = 1.3917 & 1.3846 1.50 - DW12114RD

PRATT & WHITNEY

1 1/2 6 WHITWORTH MOD UNDERBASIC SET THREAD PLUG GAGE 1.5 GO ONLY P.D. = 1.3883