How to cut tile around a toilet
Now using a grinder with a diamond wheel (preferrably 4 1/2" - easier to maneuver around the curve), while angling the grinder inward toward the center of the hole, just rotate it slowly in a semi-circle as you grind out the shape.
Grinding with a dry wheel creates a lot of dust (more than you'll notice at the time) so wear a mask and do it outside or where you don't care if it gets dirty.
The result is a near perfect fit and very clean line - something neither a tile saw or nippers can do. Under a toilet, it's not crucial, but it will make you feel good.
In this photo, the tile has already been cut fully through. I'm just "posing" with the grinder in hand and with the cutout piece in place. I'm cutting on top of an old carpet foam pad. If you look very closely you can see the carpet pad in the tile crack, and also the edge of the cutout piece doesn't line up with the edge of the tile. So that is the finished piece of tile.
The same technique can be used around other obstacles where you have less room for error than under a toilet, but a hole saw is still needed for small holes.
Last edited by jeffnc; 01-12-2013 at 02:57 AM.