Porcelain Tile / September 14, 2018 / Brousseau
These methods will not keep the drill bits cool enough and will drastically shorten the life of the drill bit. Ensure that the drill is in normal mode and set the drill to between 1000 and 1500 rpm. If you have marked the tile with a marker it is best to drill into the tile using a method called leaning in. Leaning in ensures that the drill will not slip and wander off center as you begin to drill into the tile.
Now that the pilot hole has been cut it is possible to drill the main (large) hole. Attach the appropriate diamond core and ensure that there is a constant supply of cold water (see water cooling information in the previous sections of this article). Diamond cores that are larger than 13mm will require an adapter with pilot pin that locates into the pilot hole that has been cut previously to ensure the perfect hole will be made. Starting the drill vertically begin to drill in a circular motion with sufficient pressure until the tone of the drill changes.
In choosing your tiles do not get confused with the terms non-porcelain and ceramic tiles because although technically porcelain is a kind of ceramic ware the term ceramic tile is usually referred to as non-porcelain. These tiles are hard and non-porous and absorb very minimal water as compared to ceramic tiles which are softer and have high water absorption. Porcelain tiles are highly durable because they can resist abrasions unlike ceramic tiles that are prone to chipping and scratches.