Working Plug Gages for Checking Threaded Holes

SHOP MADE 5 3/8 4 ACME THREAD PLUG GAGE 5.375 4.0 5 3/8"-4 INSPECTION CHECK - DW26993LVR

2 7/8 8 UN 2B THREAD PLUG GAGE 2.875 2.8750 GO NO GO P.D.'S = 2.7938 & 2.8048 - DW26982LVR

SHOP MADE 3 31/32 4 ACME THREAD PLUG GAGE 3.9687 4.0 3 31/32"-4 3.96875 - DW26991AJ4

HEMCO

1 1/8 20 UN 2B LEFT HAND THREAD PLUG GAGE 1.125 GO ONLY P.D. = 1.0925 2B OR 3B - DW26976LVR

ALAMEDA

7/16 14 UNC 3B LEFT HAND THREAD PLUG GAGE .4375 NO GO ONLY P.D. = .3957 L.H. - DW26978LVR

2 11/16 12 UNS 2B THREAD PLUG GAGE 2.6875 GO NO GO P.D.'S = 2.6334 & 2.6415 - DW26987AJ4

VERMONT GAGE

12 24 UNC 2B VERMONT THREAD PLUG GAGE #12 .216 GO NO GO P.D.'S = .1889 & .1933 - DW26977LVR

DUNDICK

7/8 18 C 3 THREAD PLUG GAGE .875 .8750 GO NO GO P.D.'S = .8389 & .8424 UNS - DW26966RD

WAFCO

1 1/4 18 UNEF 2B BEFORE PLATE THREAD PLUG GAGE 1.25 GO NO GO = 1.2167 & 1.2213 - DW26963RD

PRATT & WHITNEY

1 1/16 14 NS THREAD PLUG GAGE 1.0625 GO NO GO P.D.'S = 1.0161 & 1.0197 CHECK - DW26956RD

BALAX

12 28 UNF 3B THREAD PLUG GAGE #12 .216 .2160 NO GO ONLY P.D. = .1959 INSPECTION - DW26960RD

3/8 24 UNS 2B SPECIAL THREAD PLUG GAGE .375 GO NO GO P.D.'S = .3489 & .3538 - DW26959RD