Working Plug Gages for Checking Threaded Holes

HELI-COIL

5/16 24 HC 2 STI HELICOIL THREAD PLUG GAGE .3125 GO NO GO P.D.'S = .3395 & .3418 - DW27982RD

SINGER

9/16 20 SS THREAD PLUG GAGE .5625 GO NO GO P.D.'S = .5304 & .5345 INSPECTION - DW27993RD

DUNDICK

1 64 UNC 3B THREAD PLUG GAGE #1 .073 .0730 GO ONLY P.D. = .0629 3B OR 2B CHECK - DW27992RD

DUNDICK

2 56 UNC 2B THREAD PLUG GAGE #2 .086 .0860 NO GO ONLY P.D. = .0772 INSPECTION - DW27991RD

3/32 100 THREAD PLUG GAGE .09375 GO NO GO P.D.'S = .0887 & .0905 INSPECTION - DW27981RD

DUNDICK

5/16 18 UNC 3B LEFT HAND THREAD PLUG GAGE .3125 GO NO GO P.D.'S = .2764 & .2803 - DW27970RD

7/8 40 NS 3B THREAD PLUG GAGE .875 .8750 GO ONLY P.D. = .8588 UNS-3B OR 2B CHECK - DW27968RD

SHOP MADE 1 1/8 8 THREAD PLUG GAGE 1.125 1.1250 1 1/8"-8 INSPECTION CHECK - DW27967RD

DUNDICK

.546 40 UNS 3B THREAD PLUG GAGE .5460 GO NO GO P.D.'S = .5298 & .5329 35/64 - DW27965RD

PENNOYER DODGE

7/8 40 NS 3B THREAD PLUG GAGE .875 .8750 GO ONLY P.D. = .8588 UNS-3B OR 2B CHECK - DW27964RD

DUNDICK

1/2 13 UNC 2B LEFT HAND THREAD PLUG GAGE .5 GO NO GO P.D.'S = .4500 & .4565 L.H. - DW27963RD

CERTIFIED 2 3/4 16 UN 3B THREAD PLUG GAGE 2.75 2.750 NO GO ONLY P.D. = 2.7148 - DW27973RD