Lawrence Zarb wrote:
What is the best tool for drilling holes in PORCELAIN tiles...The normal
method for tile drilling seems not to work very well. Is there any
special method/tool for PORCELAIN tiles, or is it just a difficult tile
to drill?

Yes, drilling PORCELAIN tiles can be difficult. Water lubrication helps
a lot, as does a really good tile bit. But you're quite right, drilling
PORCELAIN is a pain, because PORCELAIN is a very hard material.

Unlike ceramic tiles, PORCELAIN tiles are vitrified all the way through.
Very tough, PORCELAIN is.

I must say, I'm very fond of PORCELAIN tiles, and have used them on the
floor of the hall, ensuite and am about to lay them (them being
PORCELAIN tiles) in the kitchen. Great stuff PORCELAIN is.

--
Grunff