Can I use a metal drill bit on tiles?
As mentioned earlier, drilling through tile requires a specialist drill bit – regular or even masonry bits simply won’t do the job as they’re not strong enough to penetrate tiles’ hard surfaces. Instead, you should opt for either carbide-tipped or diamond-tipped drill bits.
Do you need a special drill bit for ceramic tile?
Standard drill bits don’t work on tile, but not to worry. Ceramic tile can be drilled with a carbide bit, while glass and porcelain call for a diamond-tipped bit.