Thread: Step-by-Step: Drilling Holes in Your Glass Tank for Bulkheads
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  #172  
Old 01/03/2006, 09:17 PM
Fl_seagull Fl_seagull is offline
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Join Date: May 2004
Posts: 208
I just started drilling my 75 gal to put in a Calfo (?) type overflow. I don't use a hole saw I use stainglass bits.

Well... I cracked my first tank.

I got impatient and the bit was dull. It wasn't from over heating it was from hitting the glass .
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