When you start to drill ceramic tile ordinary thing that happened was a cracked tile or streaking. Moreover, for the first time to do it. The risk is that you are forced to replace with new tile.
For that there are some things you should consider to reduce risk.
When you want to choose a drill to drill tiles that speed can be set, starting from a very slow rotation to the best speed. Especially if it also can use a drill battery power so it is very flexible in its use.