In article ,
Steve Firth wrote:
The smooth curved break is a conchoidal fracture it's a characteristic
of ceramics and glasses to break in this way. The cause is that you are
trying to cut the tiles with an angle grinder. If you must do it using
an angle grinder then you need to a use a diamond disc, if you are
breaking the tiles as described witha diamond disc then it is a matter
of technique. You need to hold the disk vertical and to move it along
the length of the cut. Any twisting action (which is what I suspect is
happening) will cause a fracture as the disc bind in the cut and snaps
the tile.

I'd say it's near impossible to keep it square by hand. You might get away
by using one of those angle grinder stands, but for what a proper diamond
wheel wet tile cutter costs, it's not worth the risk if the tiles are
valuable.

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*Do infants enjoy infancy as much as adults enjoy adultery? *

Dave Plowman London SW
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