Okay Dave no bother, cheers for the advice / help, im off to noddy land, back on tomorrow
Dave anyways remember i had that discussion with you about the floor tiles in my bathroom about maybe not suitable, well they are spot on mate, no cracks whatso ever (touch wood)
You will need special drills for polished porcelain.
We provide commercial diamond tile drills to installers
Best selling value pack is the all in one set containing seven drills cores and holesaws to diamond drill holes into the very hardest polished porcelain tiles with drill bits matched to the correct sizes for ALL standard pipework and rawl plugs.