Using a 450W Black & Decker hammer drill and there is no way in hell to drill a hole more than a few mm in the walls in my flat. Had the same problem in my old flat. Back then I thought it was the drill bit and bought a new one - same problem. And yes it is a masonry drill bit. Current building is 60 years old, if that says anything.
What is the solution here? Get a more powerful drill?