Working Plug Gages for Checking Threaded Holes

VERMONT GAGE

5 1/4 8 UN 2B VERMONT THREAD PLUG GAGE 5.25 5.250 NO GO ONLY P.D. = 5.1815 CHECK - DW28649LVR

4 3/8 12 NS 3B THREAD PLUG GAGE 4.375 4.3750 GO ONLY P.D. = 4.3209 UNS-3B OR 2B - DW28648LVR

REGAL PREMIUM

2 5/8 16 UN 2B THREAD PLUG GAGE 2.625 2.6250 NO GO ONLY P.D. = 2.5916 CHECK - DW28633OB4

5/16 24 NF LEFT HAND THREAD PLUG GAGE .3125 GO ONLY P.D. = .2854 UNF 2B OR 3B - DW28642LVR

HELI-COIL

1/4 20 UNC 2B STI HELICOIL THREAD PLUG GAGE .25 GO NO GO P.D.'S = .2825 & .2864 - DW28629LVR

SHOP MADE 3 7/8 16 THREAD PLUG GAGE 3.875 3.8750 3 7/8"-16 INSPECTION CHECK - DW28614BA4

2 1/4 16 UN 2B OVERSIZE THREAD PLUG GAGE 2.25 GO NO GO P.D.'S = 2.2114 & 2.2176 - DW28618AZ4

SHOP MADE 3 5/8 12 LEFT HAND THREAD PLUG GAGE 3.625 L.H. 3 5/8"-12 INSPECTION - DW28613BA4

PONAM

.788 32 NS THREAD PLUG GAGE .7880 GO ONLY P.D. = .7677 .788"-32 UNS-2B OR 3B - DW28620AZ4

SHOP MADE 1 11/16 16 LEFT HAND THREAD PLUG GAGE 1.6875 1 11/16"-16 INSPECTION - DW28612BA4

S.G. CO.

3" 16 UNJ 3B THREAD PLUG GAGE 3.0 3.00 3.000 3.0000 NO GO ONLY P.D. = 2.9649 - DW28596LVR

S.G. CO.

NEW 3" 16 UNJ 3B THREAD PLUG GAGE 3.0 3.00 GO NO GO P.D.'S = 2.9594 & 2.9649 - DW28594LVR