Inch

GTD

7/8 14 NF 3 LEFT HAND THREAD RING GAGE .875 NO GO ONLY P.D. = .8250 L.H. TOOL

3 1/8 16 N 2A THREAD RING GAGES 3.125 GO NO GO P.D.'S = 3.0827 & 3.0771 UN-2A

PONAM

3 7/16 16 NS 3A THREAD RING GAGES 3.4375 GO NO GO P.D.'S = 3.3969 & 3.3926 TOOL

2 1/2 32 UNS THREAD RING GAGES 2.5 GO NO GO P.D.'S = 2.4787 & 2.4741 NS 2A ?

BESLY

2 11/16 10 NS 2A THREAD RING GAGES 2.6875 GO NO GO P.D.'S = 2.6206 & 2.6139 UNS

SOUTHERN GAGE CO.

1 7/8 40 UN 2A THREAD RING GAGES 1.875 GO NO GO P.D.'S = 1.8576 & 1.8538 NEW?

1 1/2 4 NA LEFT HAND ACME THREAD RING GAGES 1.5 GO NO GO P.D.'S= 1.3450 & 1.3350

SHEFFIELD

1/4 20 NC 2 LEFT HAND THREAD RING GAGES .25 GO NO GO P.D.'S = .2175 & .2139 L.H.

PONAM

3 5/8 28 UNS 2A THREAD RING GAGES 3.625 GO NO GO P.D.'S = 3.6004 & 3.5956 NS-2A

EFCO

2 15/16 32 NS 2A THREAD RING GAGES 2.9375 GO NO GO P.D.'S = 2.9154 & 2.9115

PD

7/8 40 NS 3A THREAD RING GAGES .875 GO NO GO P.D.'S = .8588 & .8563 UNS-3A TOOL

1 3/4 36 NS 2A THREAD RING GAGES 1.75 GO NO GO P.D.'S = 1.7309 & 1.7271 UNS-2A