Even complex curved shapes can be cut into ceramic floor and wall tiles with a bow saw, in which the saw blade is a steel string covered with an abrasive material – corundum or diamond. This abrasive can even cut hard metals. But the ball is primarily intended for tilers. Ostrich, the abrasive in this ball is easy to remove from the holder, touch the drilled hole and reattach, and then cut closed shapes, e.g.. large diameter holes.
