Quote:
Originally Posted by The Codfather
I think a 1" bulkhead requires a 1 3/4" hole.
I might be mistaken but I think you need at least 1xdiameter from the edge.
Don't take this as law, it's just off the top of my head.
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These are the bulkheads I am planning on using.
http://www.bulkreefsupply.com/store/...-x-thread.html
Looks like its greater than 1.5 " for this bulkhead its listed as 42 mm. That is the size of the diamond hole saw I ordered.
I was thinking of going at least that much out (1") just to be safe. Makes sense...