Working Plug Gages for Checking Threaded Holes

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

DURA

6" 8 UN 2B THREAD PLUG GAGE 6.0 6.00 6.000 GO NO GO P.D.'S = 5.9188 & 5.9320 - DW28631BA4

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

VERMONT GAGE

2 1/2 12 UN VERMONT THREAD PLUG GAGE 2.5 2.50 GO ONLY P.D. = 2.4459 2B OR 3B - DW28601BB4

THREDCO

BUDGET 1 3/4 16 NS 3 THREAD PLUG GAGE 1.75 GO NO GO P.D.'S = 1.7094 & 1.7155 - DW28599BB4