Porcelain Tile / September 12, 2018 / Brousseau.
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.
Attach the appropriate diamond core bit to the electric drill and ensure that there is a constant supply of cold water that is being directly aimed at the diamond core i.e. by using water cooling equipment. Note regarding water cooling. It is important to ensure that there is a constant supply of cold water directed at the drill bit in order to keep the diamond core cool and to help remove any debris that may have built up whilst drilling the tile. It is not advisable to try and cool the diamond drill bit by using a hand held aspirator or drilling through a wet sponge.
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.
To get more acquainted with the product porcelain is defined in the Meriam-Webster Dictionary as a fine grained translucent ceramic ware. There are different kinds of ceramic materials but porcelain comes from the more common type of material called whiteware. Porcelain was first discovered in China and it is believed to have been brought to Europe by the great merchant and explorer Marco Polo. The term porcelain was derived from the translucent shell porcellana because of its similarity to the cowrie shell.