Originally Posted by Goodman3eb
Some advice:
Go very slowly! Like, way slower than you think you need to, and apply hardly any pressure at all, ESPECIALLY when the tip has already broken partially through.
Always drill STRAIGHT into the glass, and not at an angle. Drilling at an angle means you tend to slide, shake, and unevenly grind away the glass, all things that tend to break the glass.
Be creative! There are lots of things you can turn into a kickass bong when armed with a glass drillbit and some patience. I had this really cool glass jar shaped like a snowman (it was from some cutesy farmer's market maple syrup my mom bought) that I turned into a bong--perfect for the holiday season, neh?
Good luck!