Marcrist PG750X Dry Tile Drill 6mm
Spend the money
Best drill bit I've used.
I was drilling porcalin tiles the hardest ones I've drilled.
I recommend starting the hole with a bosch multipurpose drill bit Nd then using this .
I've drilled around 16 holes with this and it's still going strong .
12 Mar 2015
Tile drill bit
Tried various other drill bits but lucky to get half way through. Although expensive it does get through 12mm porcelain tiles. I drilled 16 holes not sure if it will do many more. You also need a good drill
3 Mar 2015
Marcrist 6mm Dry Tile Drill
These are supposed to drill 30-70 holes through grade 5 porcelain tiles.
I do not know what grade the ceramic tiles were that I was drilling - they were hard ceramic floor tiles. I managed 13 + two half holes before the drill was completely worn out.
Still better than carbide tipped drills which struggled to drill any holes at all.
7 Jan 2015
Having spent 3 hours and blunted 2 tile drill bits drilling 4 holes in our porcelain tiles, I searched the Internet for a better option. The drill bit is a bit expensive but i think worth it, I drilled 4 holes with ease and in a fraction of the time.
I used a drill guide to start the hole and then drilled at a steady speed with no fuss. It's self cooling so no messing with water spraying.
If like me you struggled to drill through porcelain tiles then I'd suggest giving this drill bit of a go.
2 Jan 2015