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  1. 13-02-2025

    Thread: Granite framed dental milling machines

    by Sliding Head
    Replies
    12
    Views
    167,257

    FOR SALE: Re: Granite framed dental milling machines

    SOLD: Thanks for the interest generated. The two machines are sold.

    This is a wonderful forum to be part of.
    Thanks
    David
  2. 02-04-2016

    Thread: How to drill gems?

    by Sliding Head
    Replies
    13
    Views
    23,360

    Re: How to drill gems?

    I drilled ruby balls with an NSK Planet air-spindle mounted in a machining centre (Cincinatti Dart). The holes were 1.6 mm diameter and 2.5 mm deep. I can't remember the feed rate downwards but the...
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