A simple method to drill holes in glass using the right drill bits and water to lubricate. You can create craft projects like lamps, hooks for mirrors or drain holes to drain flower pots. Do not drill into tempered “safety” glass because it may shatter.
Drill bits for glass have spear-shaped carbide or diamond tips and come in assorted sizes.
Use a slow speed with moderate pressure.
Wear eye protection to avoid shards of glass.
You may place tape at the bottle hole site so the bit does not slip around.
Window putty or Plumbers putty makes an easy berm which will hold a small a Create a berm with putty around the hole area and fill with water to lubricant and cool the process.
Set the drill bit straight into the project at a right angle (i.e. 90 degrees) to the glass , ceramic or pottery surface.
Use a 1/8-inch or 3/32-inch carbide- or diamond-tipped drill bit.
Small bits work best for creating a starter hole in the glass. Drill slowly as to not crack the glass and glass-powder buildup can wear the bit.
The water in the berm will drain when the hole has developed.
Replace the starter bit with a larger one if you need a wider hole and repeat the process.
The edges of the hole may be sharp.
Use 600-grit diamond file or sand paper to smooth.
Rinse the project to remove all glass dust.