We always drill with two people, one drills while the other holds the vacuum hose (without brush) underneath.
DO NOT use the vacuum cleaner in order to collect the drilling dust. This material passes through the filter and can damage the motor or even off eventually.
If there are to be drilled on tiles, the chances are that the drill hits road with some nasty damage. Therefore, first slice a piece of plaster (of cotton) at the drilling site, and the drill hits to leave.
If you have a hole in the wall to drill you must include an envelope hanging with tape catching drill the dust easily.
When you drill into a tile give a touch with hammer and nail on the spot to drill than creating a small dent causing the drill no longer run away. Success.
Make a little dent in aluminum and then use a little alcohol on the spot where you want to drill. This prevents your drill runs away.