M. bought some curtains last month, and wanted them installed asap. But when I tried to drill some holes into the wall with my old B&D, the drillhead came out red glowing, with almost no drill hole being made. So I knew I needed some more powerfull stuff. The person in the DIY store almost laughed at me when he heard which drilling machine I used.
So meet monster Makita, a drilling machine the size of half a bazooka. Comes with a 'wall demolition' option, and drills holes into concrete walls as if they were packets of soft butter. And it even comes with a little LED illuminating the spot were to drill.