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  1. #1
    Hi,
    could somebody point me to drill bits made for drilling gems, semi precious stones, may be crystals, in the 0.8-1mm range. I know a lot of Chinese bits and pieces on ebay. But not that. No Dremel tools.

    This is for a friend, I need Pro quality tools that could be used longer, we are not talking drilling 2 stones here. A mini mill for that or +High Speed Spindle?

    Any help will be appreciated! Thanks
    project 1 , 2, Dust Shoe ...

  2. #2
    Have a friend into jewellry not sure where she buys her drills but what you are looking for are "bonded diamond drill bits" if I can get hold of her I will try and find out her european suppliers and PM you the details, but I know she also imports a lot from from the States because its cheaper.

  3. #3
    https://emvioeng.com
    Machine tools and 3D printing supplies. Expanding constantly.

  4. The Following User Says Thank You to komatias For This Useful Post:


  5. #4
    Quote Originally Posted by lucan07 View Post
    Have a friend into jewellry not sure where she buys her drills but what you are looking for are "bonded diamond drill bits" if I can get hold of her I will try and find out her european suppliers and PM you the details, but I know she also imports a lot from from the States because its cheaper.
    Great, it would be good to know what she is using exactly. So " bonded" is "METAL BOND (SINTERED) " right?



    Quote Originally Posted by komatias View Post

    Thanks. I googled but as i said so many China crap which confuses me. And the above are 50$ per bit . So i would like to know what really works well . This one seems interesting as he says on ebay listing that this is the one that China factories use for bead drilling. They are cheap enough to try. Allright i will buy them. He sells 1.5mm and 2mm.

    That still leaves to find the micro drills 0.8-1mm

    I also saw some diamond micro twist drills?
    project 1 , 2, Dust Shoe ...

  6. #5

  7. #6
    i saw that at their page : Recommended Feed Rate: down or side feed: .010" per minute.
    project 1 , 2, Dust Shoe ...

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