The wick must be with SDS insert and the machine a rotary piercer.
For wall of 30 it is complicated for any machine, it is important that you understand it, but the minimum must be of the aforementioned power. Ideally, a 900W machine up and if possible with auto clutch. This is for when you lock for any reason you do not turn the machine, this prevents bumps, dislocations and falls.
If you notice that the machine is too hot you should look for another method or lower the pressure exerted
Lastly, do the drilling in two stages
If you grab concrete there are specific wicks for it although they do not serve too much. There the ideal is a long common wick of more or less 16 mm and make several perforations and then finish with the chisel