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Posted in response to Re: How to drill holes in small Herkimer Diamonds from Bob Keller on December 04, 2007 at 09:32:02:

Re: Re: How to drill holes in small Herkimer Diamonds

I have a drill press. I used a pin chuck to grip 1mm diamond drill. The drill would start into the face of the diamond, (embedded in plaster and covered with water), get in maybe one millimeter or two, and not get any further. More pressure resulted in either the drill slipping in the chuck, or bending, or both. I would like to know any tips or techniques. The drill is spinning about 4-5000rpm. It's an old tapping machine at the highest speed, with a solid steel table. The pin chuck is from a set of 61-80 drill bits; the smallest collet in the chuck.

Howard Fink

From Howard Fink - December 18, 2007 at 07:53:06
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Message: 65723

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