Porcelain core drill

[dba3087108]

I need to drill through a 20mm porcelain slabs. Will this do it or do I need a specialist but?
Thanks

[cliffords]

I did a sink with a tool similar to that . It was a tap hole .
The one I used looked finer with visible diamond chips on it .
It would have been from Screwfix but not their own brand .
I can look tomorrow if you want.

I used water and sweated a bit as the sink was £500. It cut it very cleanly in the end

Edited to add. It was called a wet diamond core drill

[hidetheelephants]

Should do, diamonds are diamonds, they don't come in soft and hard.

[Vanden Saab]

You may get away with it depending on the grade of the porcelain but it is likely to chip the tile. If that is not a problem go for it. However if you want the proper tool for the job use something like this which runs off an angle grinder.

https://www.travisperkins.co.uk/diamond-core-bits/...

Top tip with these dry cut drills have a bucket of cold water next to you and dip the drill in it regularly to keep it cool. It will drill better and the bit will last 5 times as long.

[ashenfie]

I have the erbauer version of the works well. Use with water and they don’t last long so go carefully.

[dba3087108]

Intended up cutting it with the tile cutter in the end. It was taking an absolute age to even drill a pilot hole

[reggie747]

The old trick off fining the back of the hole position with a thin diamond blade.
That leaves a lot less for the bit to cut through.
And yes, as you've since discovered, it's a slow careful job.

[dba3087108]

Would there be anyone that could use a commercial drill to drill me a perfect hole? What sort of place would do that, I'm thinking granite worktop type of place maybe? I've cut the tile now but do have a few spare so would possibly get it drilled professionally.

[RotorRambler]

Could try a professional tiler, pay for their time.

When I did my bathroom (large format porcelain tiles) the tile shop suggested I do that if I got stuck.

I did mine in the end, nightmare, never again!