Porcelain Tile / September 14, 2018 / Brousseau
Because the majority of small diameter holes will be cut into tiles already fixed to the wall it will be necessary to drill a fixing hole behind the tile. Replace the carbide drill bit with the appropriately sized masonry drill bit and set the drill to hammer mode. Use a slow speed for drilling into hard materials to ensure that the tip doesnt overheat. Ensure that the drill bit is frequently withdrawn in order to stop a build up of dust.
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.
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.