I need to make some lav faucet holes in new marble, and shower
accessory holes in new travertine.

I see a $65 Tile Core Bit at Lowe's. Is this the proper tool, or is
there something else I should be using?

Obviously the holes will be covered by their respective trim pieces, so
they don't have to be super pretty...I just don't want to use something
that will break or otherwise mess up the material.


Joe