Had my first encounter with porcelain tiles recently :eek: ..........hard as buggery & very nerve racking with the masonry bit, I vowed to never again do this without specialised equipment! I did a bit of research & found this trick piece of gear , ordered one & now feel much more prepared for my next bathroom fixtures fitout. http://www.resimax.com.au/waterguide.htm
I also got a 6mm diamond core bit to use with it, & this will work well with Ramset red plugs that require a 6mm hole. The first thing you do when you open up the box containing the bathroom fixture is throw out the bag containing the fixtures, they're usually crap & I've had nothing but good results using the good old wall plug. Hope this helps someone avoid a headache.

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"the bitterness of poor quality is remembered long after the sweetness of low price is forgotten"

What sort of $$$ are we talking about?
Bob

6mm diamond core drill $75, waterguide $25. Compared to a cracked tile, pretty reasonable I reckon!

__________________
"the bitterness of poor quality is remembered long after the sweetness of low price is forgotten"