Re: [CAD_CAM_EDM_DRO] Re: Metal selection 101

Just in case anyone would like to know...Ruger uses charcoal that has been
screened with a #6 mesh for their colorcase hardening process. Don't know
what they use for cooling.

Smoke

> I do know there are several types of brines that help produce
> colors...everyone has their own secret receipe and it's damn near

impossible

> to find out what the really good ones are.
> >>