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 Ensure that the drill bit is frequently withdrawn in order to stop a build up of dust.
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.
Drilling holes into porcelain tile should take seconds not minutes. If it is taking you minutes it is likely that you are not applying enough pressure or that you are using an incorrect setting on the power tool. Best Tools for the Job. In order to drill perfect holes in porcelain tile it is extremely important to use premium quality drill bits. Armeg have been producing innovative high quality drilling solutions for over 30 years and Armegs PTC (Porcelain Tile Cutter) range is at the forefront of tile drilling technology.