You'd find it easy with an electric cutter with a diamond blade.
Mark the cut out on the tile. I place masking tape on the tile and draw on
Then just do several parallel cuts so that you end up with long fingers of
tile which will easily snap.
Smooth the rough edge of the cut out, (the one you can't get at properly) by
carefully moving it sideways across the blade.
Might be best to keep fingers away from rotating disk.
If you already have a full size hack saw, you can get a rod-saw blade for
it. Not quite as useful as deeper framed tile saw but handy for minor
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