Working Plug Gages for Checking Threaded Holes

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

EMUGE

M39 X 4 6H METRIC THREAD PLUG GAGE 39 4.0 GO NO GO P.D.'S = 36.402 & 36.702 - DW31967CB4

OSG

M24 X 1.5 6H METRIC THREAD PLUG GAGE 24 GO NO GO P.D.'S = 23.026 & 23.226 CHECK - DW31966CB4

SHOP MADE M36 X 4 6H METRIC THREAD PLUG GAGE 36 4.0 INSPECTION CHECK - DW31965CB4

SHOP MADE M36 X 3 THREAD PLUG GAGE 36 3.0 METRIC INSPECTION CHECK - DW31964CB4

SHOP MADE M36 X 3 LEFT HAND THREAD PLUG GAGE 36 3.0 METRIC INSPECTION CHECK - DW31963CB4

SHOP MADE M24 X 3 THREAD PLUG GAGE 24 3.0 GO AND NO GO INSPECTION - DW31962CB4

MERCURY GAGE

4" 12 UN 2B THREAD PLUG GAGE 4.0 4.00 4.000 4.0000 NO GO ONLY P.D. = 3.9544 - DW31938CB4