![]() In other words, true case hardening was not a finish, it was a hardening process. This produced a mottled finish, which was characteristic of case hardened parts. The charcoal was in lumps, so the surface of the part got hotter where there was direct contact, and not as hot where there wasn't direct contact. The nature of the process involved immersing the part(s) in a bed of hot charcoal. The industry (or maybe we gun owners) have created a lot of confusion with the use of the term "color case hardening." Case hardening is a thermal process that used to be used to harden the outer surface of soft pieces of steel. But I doubt the Italians are doing any kind of case hardening, so their "color case" finishes are probably fake - just as I'm sure this Kahr finish is fake. ![]() ![]() ![]() No, not fake - if they use charcoal to actually case harden. They might do that thing the Italians do, since they are not allowed to use organic bone in their color case hardening. ![]()
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