thanks a lot for the replies, guys.
i read some website and they say use a carbide-tipped
drill.....i assume home-fix sells those kind of drills (Black and
Decker brand)?
not sure how much a diamond drill bit will cost, but i don't
have $$$ to buy that kind of thing.
my wall tile is quite thin (8 mm), so shouldn't have much of a
problem?
also, got any place in SG where they provide ceramic-tile
drilling services?
now awaiting NH ceramics to reply but i doubt they got these
kind of services.
to be honest, the thought of drilling through ceramic makes me
wet my pants and i'm scared something will go wrong.
It's a very small job & I doubt any contractor will do it -
& if anyone does, likely u will be charged for a price which is
not worth paying for eg $30 - $50 ?.
Realistically u should get a friend or friends' friend to do for
u & it should be free! - it's actually so easy to do it!.