. Writing reviews takes time, and time is very valuable for people in the same position as me. I felt like it was one of those products that bought me a few minutes of my time because it worked so well. First, let me say that I'm new to milling and don't always know what to expect (in terms of finish) of each bit. Others wrote that it gives an almost mirror-like surface. I was not disappointed. I make mounts for my wood lathe out of aluminum blocks. The blocks had some rough edges after cutting. I want the two pieces to fit together but slide against each other with minimal resistance when I insert them. The finish is superb, I liked it so much that I bought two other sizes and received them today. The product is SOLID, fits my R8 spindle perfectly and has no threading issues. When cutting, it is so powerful that there is no play or movement. I will be ordering new cutting blades just for fun (nothing wrong with the ones I have, I just need backups).