Hole Cutting & Pro Tiler Dry Cut M14 Diamond Hole Cutter - 20mm to Buy Online

For drilling of most materials, including Porcelain and Ceramic.

Only apply light pressure when cutting - let the diamonds do the work.

Use a swivelling motion, don't hold in one position.

If drill gets too hot, dip in cup of water or stop and wait to cool.

As suggested above, do not hold straight and/or push hard - this burns out all makes and types of diamond tools very quickly.