[Jewelry making - Article 00155] - Re: [Orchid] Key-steel for chasing tools

[John S. Burton]

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    Robb - your best bet for chasing tool stock is water or oil
    hardening drill rod. I generally use 5/16" or 3/8" diameter. It comes
    in 1/4 hard condition so you can file or  grind it to shape. Harden
    just the last inch or so where your tool is. Heat to orange, quench
    in oil or water, polish, then to prevent brittleness heat the end
    gently by putting the flame below the tool area until the end is
    straw or tan color and quench again.  John Burton M.Eng. & Metalsmith

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