12-16-2014, 09:53 PM
I have the similar tool from Carmex, though arguably better quality being made in Israel rather than China. The two biggest makers of carbide insert threading tools are Vargus/Vardex and Carnex, both based there. Most of the major brands such as Kennametal, Iscar, Walter-Valenite, Seco and others get their tools from one of those two companies and rebrand it.
You would get the most out of the tool by buying the pitch-specific "cresting" (a.k.a. full form) threading inserts. With the similar external tools (which generally use the larger 3/8" I.C. size inserts, you get the same kind of results with an even better characteristic. You leave the O.D. at nominal and when your threading insert takes the O.D. down to spec, the pitch diameter is DONE.
You would get the most out of the tool by buying the pitch-specific "cresting" (a.k.a. full form) threading inserts. With the similar external tools (which generally use the larger 3/8" I.C. size inserts, you get the same kind of results with an even better characteristic. You leave the O.D. at nominal and when your threading insert takes the O.D. down to spec, the pitch diameter is DONE.