Working Plug Gages for Checking Threaded Holes

MERCURY GAGE

4" 8 UN 2B THREAD PLUG GAGE 4.0 4.00 4.000 4.0000 GO ONLY P.D. = 3.9188 2B OR 3B - DW31937CB4

WEDIN

3.137 12 NS AN16 LOCKNUT THREAD PLUG GAGE 3.1370 GO ONLY P.D. = 3.0829 AN 16 - DW31936CB4

REGAL BELOIT

4" 4 UNC 2B THREAD PLUG GAGE 4.0 4. GO ONLY P.D. = 3.8376 2B OR 3B INSPECTION - DW31935CB4

TRW

4 1/2 8 UNS LEFT HAND THREAD PLUG GAGE 4.5 GO ONLY P.D. = 4.4188 2B OR 3B L.H. - DW31934CB4

3 7/8 12 UN 2B LEFT HAND THREAD PLUG GAGE 3.875 NO GO ONLY P.D. = 3.8294 L.H. - DW31933CB4

3 1/4 8 UN 2B LEFT HAND THREAD PLUG GAGE 3.25 GO ONLY P.D. = 3.1688 2B OR 3B - DW31932CB4

WEDIN

4" 8 NS LEFT HAND THREAD PLUG GAGE 4.0 GO ONLY P.D. = 3.9188 L.H. UN 2B OR 3B - DW31931CB4

ALAMEDA

3 1/2 6 NS LEFT HAND THREAD PLUG GAGE 3.5 GO ONLY P.D. = 3.3918 L.H. UN 2B OR 3B - DW31930CB4

SHOP MADE 2 3/4 8 THREAD PLUG GAGE 2.75 2.750 2.7500 2 3/4"-8 INSPECTION CHECK - DW31926CB4

SHOP MADE 3 3/4 8 THREAD PLUG GAGE 3.75 3.750 3.7500 3 3/4"-8 INSPECTION CHECK - DW31922CB4

REGAL BELOIT

3 1/2 4 UNC 2B THREAD PLUG GAGE 3.5 4. GO NO GO P.D.'S = 3.3376 & 3.3519 - DW31921CB4

VERMONT GAGE

NEW 1 1/2 6 UNC 2B VERMONT THREAD PLUG GAGE 1.5 GO NO GO PD'S = 1.3917 & 1.4022 - DW31954VTG