[Jewelry making - Article 00474] - Re: [Orchid] Enlarging Briolette Holes

[michaelrboyd]

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Hey Lisa,

    I use Crystalite brand "tripple ripple" diamond bit drills. Starting
    with their smallest a.75mm bit and work up in size to the hole I
    need. Using my flex shaft and a small dish of water ( flat bottom
    glass ash tray works well ) I drill under water. Drill into the bead
    slightly then flip it over and drill through from the other side.
    This way you wont blow out the other side. Then I use a diamond ball
    bur 600 grit or finer about 3x the size of the hole to slightly
    counter sink the hole to get rid of the sharp edge. Sharp edges will
    chip and crack and look bad. Work in water and DON'T BREATH THE DUST.

Michael Boyd

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