[Jewelry making - Article 01719] - Re: [Orchid] [Source] Sintered diamond burs

[nick]

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    A problem with most diamond burrs is they are electroplated onto
    ordinary steel and the quality control is almost nonexistent at the
    cheaper end. Whether they last is often a matter of luck but I tend
    to buy them as cheap as possible by the 10+ and treat them as
    disposable. You can get them for pennies each from India, Pakistan
    and China and as long as you buy a box full the postage isnt too bad. 


    Other than that you need to find a company that does proper sintered
    bits and these are getting harder to find as the plating method
    means that it is easier to get an individual shape made at a low
    cost. Hav a word with your dentist and ask them what suppliers they
    use as dental bits used to be better than those aimed at the hobbyist
    with a finer particle size and proper sinter coatings 

Nick
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