[Jewelry making - Article 00630] - Re: [Orchid] Machining graphite block

[Bill Bates]

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    Steve: I have been using grafite blocks for about 20 years for ingot
    molds for sterling silver. I drilled a series of holes in the blocks
    with a 3/8 "  Di.steel drill bit and some os a 1/2" di. about 1" and
    ` 1/4" deep/ It works great for my Thermidor I 3 casting machine.
    yours Billy S. Bates


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