I'm trying to cut 18"x18" porcelain tiles with a cutter I got from Lowes.
If I cut a tile more or less in equal peices, it snaps OK. If I try to cut
3" off a side, the big piece usually gets chipped 1/2" in the corner where I
snap it. Is there some secret for using the tile cutter, especially when
trying to snap off smaller pieces?

Thanks.

Ken