Porcelain Tile / September 13, 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.
Ensure that scrap tiles or another similar material is placed under the tile that is being drilled. This will help to halt the progress of the drill once it has finished drilling through the tile. Before drilling tile ensure that you are wearing the correct safety equipment including safety glasses or goggles. Ensure that you are using a residual current device (RCD) to help prevent electric shock. Drilling Small Diameter Holes (10mm or Smaller) with Diamond Cores. Mark the center of the hole to be drilled into the tile by using a marker or a sticky drive pad.
Cheap porcelain tiles can be difficult to properly install. Cheap tiles may look nice on the surface but they may not be able to be cut cleanly with a tile saw and may chip on the edges. Also if the tiles are porous then it will be difficult to clean up the excess grout. Grout haze can become embedded in the tiles and make them look vastly different after they are installed compared to what they looked like before they were installed. Cheap tiles can have quality control issues. Many times people choose their sample tile and then order them.
The Armeg PTC Carbide drill bit range comprises of excellent porcelain tile drill bits that are capable of cutting 15-25 holes in grade 5 porcelain or 50+ in lesser grades of porcelain. These carbide drill bits boast non-slip start-up thanks to diamond-ground tip geometry. The Armeg PTC Soft Tile drill bit range is ideal for drilling softer tiles such as ceramics and travertine. They feature point-ground tips to help reduce slippage and wander. Armeg Tile Drilling Accessories for use with Armeg PTC drill bits include: water feed pump kit water feed adapters water feed clamp & drive/piloting guides to ensure non-slip start-up with small diameter diamond cores.