Drilling into porcelain tiles
Drilling into porcelain tiles is a lot trickier than drilling holes in ceramic tiles as porcelain is a much harder material. Therefore rather than using a standard spear shaped tile bit that is used for ceramic tiles (see my guide – ‘Fixing into tiles’), you need to use a diamond drill bit, which is specifically designed for making holes in hard tiles. Like any drill bits, diamond bits come in a number of different sizes, so you need to select the right size of bit for the job at hand and for the example below I’m showing how to use a 15mm diamond drill bit for drilling into porcelain tiles.
Porcelain tile drilling tips
- In this example the tile is being drilled before being fitted in place. I’ve simply positioned the tile on an offcut of plasterboard, alternatively you could clamp it on a workbench. In whichever case, make sure the tile is adequately supported.
- If the tile is already in position on the wall or floor, the principles of the technique remain exactly the same.
- If you prefer, you can buy a drill guide tool to help start off the hole in the tile.