Thread: Step-by-Step: Drilling Holes in Your Glass Tank for Bulkheads
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  #169  
Old 01/03/2006, 02:16 PM
meagan_myers meagan_myers is offline
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Join Date: Mar 2003
Location: AR
Posts: 151
If both Savko and Marine depot list a Sch. 80 2" bulkhead needing a 3 1/4 inch hole (82.55mm) then which of Lou's drill bits would be the right one? He has an 80mm and an 85mm. Would 85mm be too big?