Porcelain Tile / September 14, 2018 / Brousseau
There are some types of porcelain tiles that are quality made and do have characteristics that are vastly superior to ceramic tiles. You should always only shop for quality name brand tiles at quality tile shops to ensure that you are truly getting a quality product. Ask many questions at the tile store and ask to see as many samples as possible before you actually purchase them. Remember that many times you will be paying a premium for porcelain as opposed to just normal ceramic tiles. In many cases especially with indoor tile installations ceramic tiles will perform just as well at a much lower price.
Drilling Large Diameter Holes (13mm or Larger). In order to cut holes that are 13mm or larger in diameter it is necessary to first drill a pilot hole. The pilot hole will act as a locater for a large diamond core and will help you to drill a perfect hole in porcelain tile. Attach an 8mm carbide drill bit or 8mm diamond bit to your drill. Follow the instructions given above for either Drilling Small Diameter Holes (10mm or Smaller) with Diamond Cores or Drilling Small Diameter Holes (10mm or Smaller) with Carbide Bits depending on whether you are using diamond cores or carbide drill bits. Leave out the final step in either case as you wont be drilling a fixing hole behind the tile.
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.