Working Plug Gages for Checking Threaded Holes

VERMONT GAGE

6 5/8 12 UNS 2B VERMONT THREAD PLUG GAGE 6.625 GO ONLY P.D. = 6.5709 2B OR 3B - DW28731OB4

PENNOYER DODGE

4 3/4 12 UN 2B THREAD PLUG GAGE 4.75 4.750 GO NO GO P.D.'S = 4.6959 & 4.7046 - DW28729AZ4

PENNOYER DODGE

4 3/4 12 UN 2B THREAD PLUG GAGE 4.75 4.750 GO NO GO P.D.'S = 4.6959 & 4.7046 - DW28728AZ4

SHOP MADE 1" 20 UNEF 2B THREAD PLUG GAGE 1.0 1.00 1"-20 GO AND NO GO INSPECTION - DW28727BC4

SHOP MADE 1 1/2 16 UN 2B LEFT HAND THREAD PLUG GAGE 1.5 1.50 1.500 1.5000 L.H. - DW28726BC4

SHOP MADE 1 3/4 16 UN 2B LEFT HAND THREAD PLUG GAGE 1.75 L.H. GO ONLY CHECK - DW28725BC4

SHOP MADE 1 5/8 18 UNEF 2B THREAD PLUG GAGE 1.625 1.6250 1 5/8"-18 INSPECTION - DW28724BC4

SHOP MADE 2 3/4 16 UN 2B LEFT HAND THREAD PLUG GAGE 2.75 GO AND NO GO CHECK - DW28723BC4

M52 X 4 6H METRIC THREAD PLUG GAGE 52 4.0 GO NO GO P.D.'S = 49.402 & 49.717 - DW28714BC4

DURA

M20 X 1 6H THREAD PLUG GAGE 20 1.0 GO NO GO P.D.'S = 19.350 & 19.510 CHECK - DW28713LVR

NORTHERN GAUGE

2 7/8 16 UNJ 3B THREAD PLUG GAGE 2.875 2.8750 GO NO GO P.D.'S = 2.8344 & 2.8399 - DW28711BC4

VERMONT GAGE

2 1/4 16 UN 2B LEFT HAND VERMONT THREAD PLUG GAGE 2.25 GO NO GO = 2.2094 2.2164 - DW28710BC4