The presentation of these items is amazing. Beautiful aluminum box with soft lining. They look very expensive until you notice a rust crust on one of the countersinks (see picture). The finish looks different on each of these instruments despite being a set. Appearance is one thing and quite important, but the most important quality is how it works? Well 4 out of 5 works very well. I might not even notice the rusty one as it works well and cuts beautifully even at 650rpm. Most others in this set will work just as well. That's important to me. However, the 3/4 countersink has its own problems. It's well made, but looser than almost every other countersink I own (and I have quite a few). If I don't run the 3/4 tool very slowly it leaves vibration marks which is not good. I suspect a problem with the cutting angles, but I'm not sure. The set is good value for money, but be aware that there is a chance that not all tools in the set are 100%.