Dentist Drill bits?? Why? Is there something special about them? I too use Delta's drill bits.
dgarza, you stated yours are long lasting... am I doing something wrong then. I seem to be changing out my drill buts after only a couple of drillings. My burs still seem sharp, but I'm not drilling into the glass unless I force my drill down and I don't do that because it will make the chip crack - what am I doing wrong?
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