1/2

1/2 48 2A THREAD RING GAGE .5 1/2"-48 GO AND NO GO INSPECTION CHECK - DW9287BU

HEMCO

1/2 12 N 2A THREAD RING GAGES .5 GO NO GO P.D.'S = .4443 & .4389 UN-2A CHECK - DW8332BU

MERCURY

1/2 27 UNS 3A MODIFIED THREAD RING GAGE .5 GO ONLY P.D. = .4738 NS-3A QUALITY - DW4369RD

HANSON WHITNEY

1/2 16 NS 2A THREAD RING GAGE .5 GO ONLY P.D. = .4580 UNS-2A 1/2"-16 INSPECTION - DW3422RD

HANSON WHITNEY

1/2 16 NA ACME THREAD RING GAGE .5 NO GO ONLY P.D. = .4514 1/2"-16 INSPECTION - DW3421RD

PONAM

1/2 10 STUB 60 DEG DOUBLE LEAD LEFT HAND THREAD RING GAGES GO NO GO .4551 .4496

PONAM

1/2 10 STUB 60 DEGREES DOUBLE LEAD BEFORE PLATE THREAD RING GAGES .5 .4535 .4488

DOALL

1/2 12 UNC 3A THREAD RING GAGES .5 GO NO GO P.D.'S = .4459 & .4421 NC-3A TOOL

1/2 18 N 2 THREAD RING GAGES .5 GO NO GO P.D.'S = .4692 & .4598 UN-2 QUALITY

SWANSON

1/2 6.5 NA 2G ACME MOD. THREAD RING GAGE .5 6 1/2 .500 GO ONLY P.D. = .4443

1/2 20 UNF 2A SPECIAL THREAD RING GAGES .5 GO NO GO P.D.'S= .4675 & .4639 .50-20

1/2 12 UNC 3A THREAD RING GAGES .5 GO NO GO P.D.'S = .4459 & .4421 1/2-12 .50