Working Plug Gages for Checking Threaded Holes

SHOP MADE 1" 5 ACME THREAD PLUG GAGE 1.0 5. 1"-5 INSPECTION CHECK - DW30427LVR

DURA

7/8 14 SPECIAL THREAD PLUG GAGE .875 .8750 NO GO ONLY P.D. = .8350 INSPECTION - DW30426LVR

PENNOYER DODGE

2 1/2 18 NS 3B THREAD PLUG GAGE 2.5 2.50 2.500 NO GO ONLY P.D. = 2.4690 UNS-3B - DW30425LVR

SCHRILLO

3/4 16 UNF STI HELICOIL THREAD PLUG GAGE .75 .750 GO ONLY P.D. = .7906 2B OR 3B - DW30423LVR

CRITERION

1 1/2 18 THREAD PLUG GAGE 1.5 1.50 1.500 1.5000 1 1/2-18 GO ONLY INSPECTION - DW30422LVR

19/32 24 THREAD PLUG GAGE .5937 GO NO GO P.D.'S = .5667 & .5693 INSPECTION CHECK - DW30421LVR

1 3/8 16 UN 2B THREAD PLUG GAGE 1.375 1.3750 GO NO GO P.D.'S = 1.3344 & 1.3410 - DW30414LVR

5 1/4 12 THREAD PLUG GAGE 5.25 5.250 5.2500 5 1/4"-12 INSPECTION CHECK GO ONLY - DW30413LVR

S.G. CO.

3/4 16 UNF SPECIAL THREAD PLUG GAGE .75 .750 .7500 GO ONLY P.D. = .7104 CHECK - DW30407LVR

SHOP MADE 1 1/2 6 THREAD PLUG GAGE 1.5 1.50 1.500 1.5000 1 1/2"-6 INSPECTION - DW30404LVR

NEW 3/8 16 THREAD PLUG GAGE .375 .3750 GO ONLY P.D. = .3344 INSPECTION CHECK - DW30403LVR

SCC

1/2 20 UNF 2 LEFT HAND THREAD PLUG GAGE .5 GO NO GO P.D.'S = .4675 & .4731 L.H. - DW30402LVR