Porcelain Tile / September 14, 2018 / Brousseau
It is not advisable to try and cool the drill bit by using an aspirator or drilling through a wet sponge these methods will not keep the drill bit cool enough and the drill bit will burn out. Set the electric drill to between 700 and 900 rpm. Make sure that the drill is in normal mode. Push the carbide drill bit gently into where you have marked the tile until you hear a cracking sound. Start drilling from a vertical position with sufficient pressure and dont stop until you hear a change in the tone of the drill. As soon as you hear the change in the tone begin to ease off.
Application of tiles are rated according to the Porcelain Enamel Institute (PEI) rating system from PEI Class 1 up to PEI Class 5. If you are looking for the right tiles to be used for your walls or ceiling the PEI Class 1 is recommended because the tiles are not exposed to any impact. You can choose the PEI Classes 2 and 3 for your bathroom tiles and the PEI Classes 3 to 5 as kitchen and tabletops and as flooring in any part of your home or building according to the impact foot traffic or exposure of the area where you will install your porcelain tiles.
How to lean in... To lean in simply start the drill at an angle as soon as the drill bit has started to cut the tile slowly bring the drill into a vertical position. Ensure that sufficient pressure is being applied (tile dust should be evident in cooling water) and rotate slowly until you have cut the perfect hole. As you finish the hole you will notice that the tone of the drill will change. Using sticky drive pads. If you use a sticky drive pad it is unnecessary to use the leaning in method.