Having at last purchased an SDS drill, thanks to the advice from the Two Daves, I'm ready to do something about various telephone and aerial cables that adorn the outside walls of the house. The external walls are granite and, over time, various people have tried to attach cables with ordinary cable clips. The nails never penetrate properly, unsurprisingly, and cables tend to just flap around in the wind.
Plan A is to drill holes, then insert lengths of dowel, held with No More Nails, then use ordinary cable clips, with the nails going into the ends of the dowels.
A suitable plan, or is there an alternative?
Thanks!