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- Jan 10, 2007
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OK,what is the coppery color on the blade,looks good.(last pic)
I think this information has been posted somewhere else on the forums before, but I haven't had any luck searching it. Allen, clue us in
Thanks Allen.I differentially harden the blade either using clay or as in this case an edge quench. Then I etch the blade in a solution that contains copper. Then I rub and buff off the copper that will come off. If it looks the way I want it to, I finish the knife. If not, grind off the copper and try it again.