The way I drill is this.

Buy BRAND NEW HSS drill bits, one per hole.

Put some masking tape onto the tile. Slowly start to drill, you need good control of the drill to stop it slipping, the glaze is the hardest part. Once you are
into the glaze increase speed, but not a lot. If the drill bit becomes red
1) you are going way to fast
2) get a new drill bit.

It takes quite a while, its not like drilling wood or steel.

Rick

On Tue, 4 Nov 2003 07:58:53 -0000, "Rafal" wrote:
Hi all

Just heard few horror stories about drilling and cutting porcelain tiles,
people snapping drill bits etc.
Is this just a question of not using diamond drill?
What are the best methods of drilling /small and large holes/ in porcelain
floor tiles and cutting them in shapes?

Regards

Rafal Zado