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Posted in response to Re: Re: Re: Re: Re: Re: Re: Re: Re: drilling jasper? from dennis durgin on December 27, 2007 at 07:50:09:

Re: Re: Re: Re: Re: Re: Re: Re: Re: Re: drilling jasper?

Use the under water method as above. Add a little freon oil in water. You get it at auto parts stores in pint cans. It lubs the water but don't turn it milky. On Brazilian agate I get about 25 holes per bit. Also turn bit about 1,000 rpms. Go slow. KOR Bobby

From Bobby B - December 27, 2007 at 16:41:15
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Bob Keller