Shes our hardest worker Dan!. PS: I meant to show the drilling results using a 50mm (or other) diamond core to
demonstate this will give installers an absolutely perfect results. It will NEVER crack the tile - no matter how close to the edge.
Keep it cool with a water sponge (here you can see my old washing up sponge)
Things have moved on a bit since this photo was taken..
At 50mm you will get a great hole with no variation on the sides.
For precission drilling of holes that can sometimes be important for example installing LED lighting.
Above you can see a perfect circle has been cut out giving a solid core through the tile. Very strong.
Its true some things do cap off - or come with a cover plate thus concealing the hole and it may not be necessasary
to strive for perfection. But the big plus with the hole drilled so neat is the effort going into doing it is no different to other methods.
And the result looks great.
I am not sure what the 50mm hole is going to be used for so hopefully readers (and the forum poster) can see there is a method to be followed.