Christopher Michaut's Page

It doesn't matter what brand you buy, they all work in a similar fashion.

Carbide Tip Glass and Tile Cutting Drill Bit Sets are cheaper to purchase than Diamond tipped circular types.

To be honest all you have to be is patient (after a few mistakes, running water is not a bad idea if you can manage it) otherwise pay attention to the glass or tile you are intending to cut into and where you intend to drill.  Try to see if…