On Fri, 30 Jul 2010 15:31:31 -0700 (PDT), mike
wrote:

On Jul 30, 5:20*am, Bob Villa wrote:
Use a center punch 1st...it will make a small chip to remove the

Center punch on tile? What could possibly go wrong?

Replace the tile? I've drilled porcelain tile to mount a bi-fold door
pin mount.

Just a variable speed drill, and a good bit. The bit tried to walk and
dance for a moment, but I handled that.

I've _never_ heard of using a ""center punch". Crack!