Reef nutrition

Make Your Own Hole Saw and Drill Any Sized Hole in Glass

Interesting but in the grand scheme of things with how cheap hole saws are today the money you may save is so tiny as not to be worth it IMO, like what 5 or 10 bucks?
 
This is one of those things that borders on DIWhy.

You can get a set of bits for $30 on Amazon or individual bits for about $10. They aren't going to last you a decade like the high quality ones but I've used the same chinesium bit for 8 holes now and no issues.
 
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