Working Plug Gages for Checking Threaded Holes

SHOP MADE 1 3/16 18 THREAD PLUG GAGE 1.1875 1 3/16"-18 GO AND NO GO - DW28749BC4

M42 X 4 6H METRIC THREAD PLUG GAGE 42 4.0 GO NO GO P.D.'S = 39.402 & 39.702 - DW28747BC4

1 1/2 14 UNS 2B THREAD PLUG GAGE 1.5 1.50 GO NO GO P.D.'S = 1.4536 & 1.4608 - DW28745BC4

NORTHERN GAUGE

3/4 12 STUB ACME 2G THREAD PLUG GAGE .75 .750 GO NO GO P.D.'S = .7250 & .7389 - DW28744BC4

NORTHERN GAUGE

1/2 16 BSF M THREAD PLUG GAGE .5 .50 GO NO GO P.D.'S = .4600 & .4650 WHIT 55 DEG - DW28742BC4

SHOP MADE 1 3/4 12 THREAD PLUG GAGE 1.75 1.750 1 3/4"-12 GO ONLY INSPECTION - DW28741BC4

NORTHERN GAUGE

1.54 12 STUB ACME 2G THREAD PLUG GAGE 1.540 GO NO GO P.D.'S = 1.5150 & 1.5316 - DW28740BC4

NORTHERN GAUGE

1 7/16 12 STUB ACME 2G THREAD PLUG GAGE 1.4375 GO NO GO P.D.'S = 1.4125 & 1.4285 - DW28737BC4

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