A simple question - I hope!
I'm trying to put up a curtain pole over a window in the 40-year-old extension to my house. I would prefer to plug straight into the wall rather than use a batten. The pole fixings have just one screw each so I only need to drill two holes. The trouble is, I can't get any deeper than about 1/2 inch without hitting something really hard - I assume a metal lintel, but I suppose it could be concrete. The width of the window is 120 cm or so - don't suppose that has any relevance. What sort of drill and drill bit do I need if it's metal, and if it's concrete?
TIA
Keith