See that white wall in the photo above? I hate it. Tried to put my shelving up today but after a few visits to the local hardware store, getting colbalt drill bits, the wall won, its damn solid stone. Guess I need to now go and hire a decent hammer drill, and invest in some much better quality drill bits. The cobalt bits I purchased melted.! Which of course resulted in a hole in the wall, and no way to drill any further/deeper I hate DIY Bottom drill bit is new, the top one is the melted one. Untitled by Micky Aldridge, on Flickr