While that sounds expensive a inch diamond tipped tip costs under 20 and a carbide bit of the same size can be had for less than 10.
Tile drilling bits.
When in doubt buy the diamond bit.
The flat shank on the 5 16 bit is an unusual shape for tile bits.
It will drill any type of tile.
Layout the wall for success.
Ceramic tile can be drilled with a carbide bit while glass and porcelain call for a diamond tipped bit.
For pricing and availability.
I used these drills from bosch for drilling glass mirrors ceramic and porcelain tiles and natural stone.
Many common ceramic tiles are made primarily with clay but then coated with a thin glaze that is primarily silica.
The tile drill bits slide around on the tile making it hard to keep the drill bit in place.
They are stronger and stay sharper longer than most other drill bits which makes them useful for cutting impervious materials such as porcelain tile.
The three smaller bits have round shanks.
Porcelain tile core drill bits the diamond tool store carries core bits that contain high diamond vacuum brazing which give them great performance and long life.
Carbide tipped drill bit for drilling natural stone granite slate ceramic and glass tiles.
Spyder spyder 14pc carbide tip hole saw kit.
For pricing and availability.
Carbide tipped drill bit for drilling natural stone granite slate ceramic and glass tiles.
When drilling through tile you have to make sure that your bit doesn t start walking or slipping as you go.
Tile drill bits.
In the kiln this silica coating turns into a hard thin glass coating and the clay transform into a low grade slate like rock.
The drill bits are standard 1 8 3 16 and 5 16.
Find diamond core drill bits at lowe s today.
So with that in mind this set of four from vermont american come with spear shaped tips so that they will penetrate almost immediately.
The best drill bit for porcelain tile is the carbide drill bit.