Is it OK to drill holes on tiles with an ordinary bit? Will the tiles crack?
Not a bit of the problem, mainly tile problems, good quality tiles are not easy to crack.
But my home is cheap tiles, give you a weapon:I use the impact hammer drill, not too big eyes when drilling, I only through the 6-8 (i.e. 6-8mm diameter) of the eye;
An electric drill must, of course, be of good stability. It is a small vibrating one, and the stability of the new one is better than that of the old one.When you drill, take it easy and slow down.The position is not a problem. I've drilled both the middle and the edge. Please be sure to be slow and slow!