Drill Porcelain Tile?

Posted by Richard J Kinch on November 30, 2005, 3:10 pm

Phil Munro writes:

> I have drilled porcelain tile with a carbide bit, and it did not ruin
> the bit. Once the bit gets started into the hard surface, it goes
> nicely.

Depends on the porcelain. There are 6 grades of abrasion resistance. A
PEI 5 type will quickly take the edge off a carbide hole saw.

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