How to drill into tiles?

[al123]

I’ve recently had a new bathroom fitted and need to install a blind. The holes I need to drill are only 6mm, but I want to try and make sure I don’t crack the tiles!

Someone said that if I started off the hole by hand it would reduce the chances of the tile cracking.

Does anyone have any tips?

Thanks

 

[al123]

Thanks for all the advice, I managed to fit the blind without cracking any tiles

These are the ones i mean. Handy for all jobs and eat bricks wihout a hammer drill.
http://www.screwfix.com/prods/95958...ll-Bits/Bosch-Multipurpose-Drill-Bit-Set-4-Pc

I went out and bought a decent masonry bit as the drill bits I have are poor quality.

I picked those up in the shop, I probably should have bought them!