What drill bit is needed to make hole in glass bottle?

In general, two types of drill bits can be successfully used on glass: tungsten carbide spear-tipped drill bits and diamond-tipped drill bits; there are also diamond-coated drill bits. Carbide-tipped drill bits are most commonly used for non-tempered glass, ceramics and tiles.

You can order drill bits for glass from Amazon.

Hi Kitty, You need a diamond glass drill bit. You can purchase them from Amazon.

i use a glass and tile bit for wine bottle, cups/saucers and such. Just keep the glass wet so heat from bit doesn’t break glass.

They come in all sizes, use one for glass only