Thread: How to drill gems?
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01-04-2016 #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
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01-04-2016 #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.
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01-04-2016 #3
google is your friend https://www.youtube.com/watch?v=itMhq8js8qc
https://emvioeng.com
Machine tools and 3D printing supplies. Expanding constantly.
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The Following User Says Thank You to komatias For This Useful Post:
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01-04-2016 #4
Great, it would be good to know what she is using exactly. So " bonded" is "METAL BOND (SINTERED) " right?
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?
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01-04-2016 #5
Have a look here http://www.ukam.com/micro_core_drills.htm
Phill
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01-04-2016 #6
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