Working Plug Gages for Checking Threaded Holes

SHOP MADE 2 3/4 8 UN 3B THREAD PLUG GAGE 2.75 2.750 NO GO ONLY P.D. = 2.6770 - DW30907BK4

SHOP MADE 1 3/4 12 2B THREAD PLUG GAGE 1.75 GO NO GO P.D.'S = 1.6959 & 1.7037 - DW30906BK4

SHOP MADE 1" 20 THREAD PLUG GAGE 1.0 1.00 1.000 1.0000 1"-20 INSPECTION CHECK - DW30905BK4

SHOP MADE 1 3/4 12 THREAD PLUG GAGE 1.75 1.750 1 3/4"-12 INSPECTION CHECK - DW30904BK4

SHOP MADE 1 5/16 18 NEF THREAD PLUG GAGE 1.3125 1 5/16"-18 INSPECTION CHECK - DW30903BK4

THREAD CHECK

3 1/8 16 N 3 THREAD PLUG GAGE 3.125 3.1250 NO GO ONLY P.D. = 3.0891 UN-3 CHECK - DW30892LVR

NEW 1" 14 UNS 2B THREAD PLUG GAGE 1.0 1.00 1.000 GO NO GO P.D.'S = .9536 & .9605 - DW30869MSAF

MERCURY GAGE

10 32 UNJF 3B THREAD PLUG GAGE #10 .190 .1900 GO NO GO P.D.'S = .1697 & .1726 - DW30865LVR

REGAL BELOIT

15/16 20 UNEF 2B LEFT HAND THREAD PLUG GAGE .9375 GO NO GO PD'S = .9050 & .9109 - DW30863LVR

5/16 24 SPECIAL THREAD PLUG GAGE .3125 GO NO GO PD'S = .3395 & .3409 INSPECTION - DW30830BK4

5/16 18 NC 3 STI HELICOIL THREAD PLUG GAGE .3125 GO NO GO PD'S = .3486 & .3506 - DW30828BK4

2 7/8 12 NS 3 THREAD PLUG GAGE 2.875 2.8750 NO GO ONLY P.D. = 2.8278 INSPECTION - DW30814BK4