My days of buying cheap drills are over. I'm building a deck where I need to attach planks to a concrete foundation. To be honest I was scared of this part because my previous masonry experience was extremely disappointing. The process just hit my arms and shoulders, and I ended up just burning my cheap beats. These beats are different. I wouldn't say they cut through concrete like butter. But once installed, they drill pretty well. I still have a lot to do, but I think this is perhaps the easiest part of my job. How important is a set of quality bits?