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Thread: diamond core drill

  1. #1
    Join Date
    Feb 2011
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    Default diamond core drill

    Hi - has anyone any experience of using a diamond core drill? I have a fancy to drill out some plugs from old plates and mount them in bezels. My question is this - what size core are you left with after drilling, eg using a 25mm core drill.

  2. #2
    Join Date
    Dec 2009
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    The answer depends on the thickness of the drill Theresa. Supposing it has 3mm walls, the core will be around 19mm in diameter.
    However depending on the quality of the plates (I imagine you mean plates for food), you might only get broken cores.
    Certainly you will need water for lubrication, a choice of speed, probably a pillar drill, and lots of messy experiments.
    You might also need to tidy the edges with a diamond file, or plate. Dennis.

  3. #3
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    I've taken a flyer and ordered a selection. They don't cost much so I can experiment. The seller said you drill dry. They are designed for ceramics so we will see.....
    I seem to be lacking in inspiration since Christmas and have been doing some watercolour paintings of my grandchildren instead. No pressure to sell so very enjoyable and relaxing.

  4. #4
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    Ah, but we'd all like to see the result of this too Theresa.

  5. #5
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    Default

    Click image for larger version. 

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    Top - my niece
    bottom - my grand daughter

  6. #6
    Join Date
    Jan 2018
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    Amazing pics! You're very talented. I got as far as drawing my daughter's eye.


    Sent from my iPhone using Tapatalk

  7. #7
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    Feb 2011
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    Thank you Mandy - but I need a lot more practice. I want to make it all a lot softer and delicate. The eye is brilliant!

  8. #8
    Join Date
    Jul 2017
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    Lovely artwork (both of you), I can't draw for toffee!

    I look forward to seeing the results of your experiments with the core drills Theresa.

  9. #9
    Join Date
    Oct 2016
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    86

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    Hi Theresa I bought a set of these https://www.ebay.co.uk/itm/Diamond-H...ESQ:rk:19:pf:0 that I use to cut out round cabochons they work fine in a pillar drill , I usually hold them under water when I do it

  10. #10
    Join Date
    Dec 2009
    Location
    Central London
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    The portraits show a lot of love.

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