Working Plug Gages for Checking Threaded Holes

PENNOYER DODGE

4 1/4 16 NS 3 THREAD PLUG GAGE 4.25 4.250 4.2500 NO GO ONLY P.D. = 4.2160 CHECK - DW26147RD

SHOP MADE 2 3/8 28 UNS 2B THREAD PLUG GAGE 2.375 2.3750 2 3/8"-28 INSPECTION - DW26145RD

SHOP MADE 2" 16 THREAD PLUG GAGE 2.0 2.00 2.000 2.0000 2"-16 INSPECTION CHECK - DW26144RD

SHOP MADE 2 1/8 8 THREAD PLUG GAGE 2.125 2.1250 2 1/8"-8 INSPECTION CHECK - DW26143RD

SHOP MADE 1 9/16 18 THREAD PLUG GAGE 1.5625 GO ONLY P.D. = 1.529 INSPECTION - DW26142RD

SHOP MADE 2 1/8 16 THREAD PLUG GAGE 2.125 2.1250 2 1/8"-16 INSPECTION CHECK - DW26141RD

HUECKSTAEDT

5/16 24 UNF 2B SPECIAL THREAD PLUG GAGE .3125 GO NO GO PDS= .2874 & .2904 CHECK - DW26127BL3

HEMCO

5/16 40 UN THREAD PLUG GAGE .3125 GO NO GO P.D.'S = .2963 & .2993 INSPECTION - DW26128BL3

3/8 56 NS 2 THREAD PLUG GAGE .375 .3750 GO NO GO P.D.'S = .3634 & .3665 CHECK - DW26122BL3

REGAL

1 1/4 12 UN 2B SPECIAL THREAD PLUG GAGE 1.25 GO NO GO P.D.'S = 1.2079 & 1.2159 - DW26112BL3

G.A. CO.

2 56 UNC 2B SPECIAL THREAD PLUG GAGE #2 .086 GO NO GO P.D.'S = .0976 & .0996 - DW26117BL3

WALDEN

5 15/16 16 UNJ 2B THREAD PLUG GAGE 5.9375 GO ONLY P.D. = 5.8969 2B OR 3B CHECK - DW26120BL3