Drilling tiles - idiot prevent question

[Dave Plowman (News)]

As I said a diamond core drill works just fine - but still takes some time.

[The Medway Handyman]

The OP said "glazed ceramic floor tile" - I assume not porcelain or he would have said so?

[The Medway Handyman]

Same here (assuming they are not porcelain) Multi purpose bit, nice sharp point, no tape.

[Steve Walker]

> They are fantastic.

Definitely - wouldn't attempt to drill a precious glazed tile without one

[Andy Dingley]

Most of my tiles have a brick wall behind them and I need to switch to the SDS to go through that, hence the two drills.

[Jon Fairbairn]

What's the issue with porcelain tiles? The porcelain tiles I used on my kitchen worktop are really quite easy to work. Presumably there's more than one type of porcelain tile? These are made of the same stuff all the way through, no glaze.

[David in Normandy]

I was unaware of any difference until I tried drilling the last lot of floor tiles I bought. Hard as hell. I've drilled tiles fairly easily over the years with an ordinary masonry bit, but these latest ones are a real struggle and blunt the bits very easily, even with cooling water spray. There must be "porcelain" and "porcelain"?

[Dave Plowman (News)]

Yup. I blunted a proper tile drill when attempting the first hole. Using a low speed and lots of pressure.