Cerbide is an excellent material. We looked at selling it but it is
primarily for high wear / low impact application such as nozzles. We
are more tools such as saws.

I talked to new guy there maybe a month ago. He seemed bright and a
straight shooter. Were I you I think I would call them.

Cerbide does have a small amount of binder. It is much smaller than
ordinary tungsten carbide and falls in a category called
"binderless." This is not strictly correct but is accepted common
usage much as the term "tungsten carbide" is used to refer to
tungsten carbide grains cemented with a binder rather than just the
tungsten carbide grains themselves.

If you are worried about allergies this may be significant. Also the
testing on solubility is done on common laboratory acids and organic
acids can react much differently.

I think I would find a little EDM shop and at least ask them for a
quote to do the rough work.

It is my understanding that cerbide has a good shop for custom fab
work. It much be best to have one sintered to shape and then polish.
This is the way they do with the watches, etc in ordinary tungsten
carbide.

Tom