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Old 04/13/2006, 12:57 PM   #266
DHyslop
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Join Date: Sep 2005
Location: RI
Posts: 1,085
You'll generally have some slight conchoidal fractures along the rims. Slight is the key word here, if you're doing it right they shouldn't be very big. The worst ones are usually associated with the bit coming through the other side, which is why I like to clamp a piece of scrap glass on the other side.

Dan


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