[Jewelry making - Article 00136] - Re: [Orchid] Appropriate gauge for flush setting

[John Donivan]

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>     Why a ball bur instead of a setting bur? 

    No doubt Peter will give his take on what was his quote. To me, what
    are called "setting burs" - straight sided burs with an angle on the
    end, are more than just useless, they are downright dangerous to the
    work. I have no doubt there are some who disagree, which is fine
    (let's just not turn it into a flame war, K?) I see graphics showing
    them being used on prong setting (Wrong!!), so then the prongs are
    all cut away, and then need to be pushed over 90 deg. For doing
    something like flush setting or bead work, the bur must be EXACTLY
    the right size and angle to match the stone (diamonds come in an
    infinite range of sizes), and then you have straight walls, too -
    not the best situation, usually. If one were press fitting diamonds
    with a jeweling press, it would likely be the right tool - at the
    bench I for one have no use for them. I have them, and every once in
    a while I'll steel wool off the rust and use one for opening up and
    bottoming a bezel or something, but that's about it...If they had a
    purpose I would happily use them, but they just don't, to me.. 

http://www.donivanandmaggiora.com
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