To make larger holes you can use a ceramic tile hole saw which has a diamond grit abrasive edge instead of teeth.
Drilling through hard ceramic tiles.
Wipe the tile with a rag soaked in mild soap and water.
Examine the cleaned surface for damage.
Glazed ceramic tile is the most common what you ll find in almost every older home and the easiest to drill through.
What types of drill bits are the best for drilling into tiles.
If the tile is cracked you ll need to replace it before you continue step 2 choose a drill bit.
A carbide drill bit or a diamond drill bit are best for drilling holes in ceramic tile.
In most cases a carbide tipped masonry drill bit check my recommendations is your best option when drilling through ceramic tile.
Porcelain tiles for instance are harder to break through than ceramic tiles since they are very dense.
As a result drilling through porcelain tiles will require more work and preparation than cutting through other types of tile.
These bits are more refined and far better able to bore through the ceramic structure without cracking it than regular bits.
The proper drill speed will prevent a disaster.
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Search for an appropriate bit.
Figure out what kind of tile you have.
Step 1 clean the tile s surface.
Glass tile is used more as an accent and has only been around for 15 years or so.
Instead use an abrasive bit like a diamond drill bit 1 x expert source art fricke.
You will also need a specialized drill bit that can penetrate the hard surface of porcelain tiles.
An ordinary steel drill bit may fail to penetrate the tile or cause it to shatter.
Steps for drilling through tile 1.
Run the drill at about half speed and dip the bit periodically in water to keep it cool.