1 3/4 - 18

TAFT-PEIRCE

1 3/4 18 NEF 3 SET THREAD PLUG GAGE 1.75 GO NO GO P.D.'S = 1.7139 & 1.7094 1.750 - DW11708AD1

DURA

1 3/4 18 NS 3A SET THREAD PLUG GAGE 1.75 GO ONLY P.D. = 1.7139 UNS-3A CHECK - DW6305RD

SOUTHERN GAGE CO.

1 3/4 18 UN 2A PREPLATE SET THREAD PLUG GAGE 1.75 GO NO GO PDS= 1.7104 & 1.7065 - DW6280RD

HANSON-WHITNEY

1 3/4 18 NS SET THREAD PLUG GAGE 1.75 NO GO ONLY P.D. = 1.7099 INSPECTION TOOLS