Working Plug Gages for Checking Threaded Holes

GTD

1 11/16 12 NS 3 THREAD PLUG GAGE 1.6875 GO NO GO P.D.'S = 1.6334 & 1.6418 CHECK - DW31992CB4

1 5/16 12 UN 2B THREAD PLUG GAGE 1.3125 GO NO GO P.D.'S = 1.2584 & 1.2659 CHECK - DW31991CB4

VERMONT GAGE

NEW 7/16 20 UNF 2B VERMONT THREAD PLUG GAGE .4375 GO NO GO PD'S = .4050 & .4104 - DW31987LVR

1 1/16 20 UN 2B THREAD PLUG GAGE 1.0625 GO NO GO P.D.'S = 1.0300 & 1.0359 CHECK - DW31981LVR

SHOP MADE 7" 7 THREAD PLUG GAGE 7.0 7.00 7.000 7.0000 7"-7 INSPECTION CHECK - DW31980CB4

SHOP MADE 7" 6 UN THREAD PLUG GAGE 7.0 7.00 7.000 GO ONLY P.D. = 6.883 2B OR 3B - DW31979CB4

VERMONT GAGE

4 5/8 12 UN 2B VERMONT THREAD PLUG GAGE 4.625 GO NO GO P.D.'S = 4.5709 & 4.5796 - DW31978CB4

SHOP MADE 2 1/4 8 THREAD PLUG GAGE 2.25 2.250 2.2500 GO ONLY INSPECTION CHECK - DW31977CB4

TRW

3 1/8 8 UN LEFT HAND THREAD PLUG GAGE 3.125 GO ONLY P.D. = 3.0438 2B OR 3B L.H. - DW31972CB4

2 1/2 4 UNC 2B THREAD PLUG GAGE 2.5 4. GO NO GO P.D.'S = 2.3376 & 2.3511 CHECK - DW31970CB4

VERMONT GAGE

NEW M3 X .5 6H VERMONT THREAD PLUG GAGE 3 0.5 GO NO GO P.D.'S = 2.675 & 2.775 - DW31969CB4

M18 X 1.5 SPECIAL THREAD PLUG GAGE 18 GO NO GO P.D.'S = .6703 & .6753 INSPECTION - DW31968CB4