In article , "Dave Plowman (News)"
says...
In article ,
Rob Morley wrote:
You can't really do a plunge cut with a tile cutter - either use a
small grinder or a drill.

You certainly can if you're careful.

I know but it's fiddly, you have to take the guard off the blade, if
you want a smallish cut you have to go through from both sides ...
one of the few jobs where a Dremel might be worth using.