This is a very good set of normal quality CMT's that I've seen in my other CMT tools. The flexibility of this set is amazing. So I would only give it 4.5 stars if possible. The instructions that come with the kit are terrible. In fact, they are pictured here on Revain. Just click on the larger image and there are instructions. I'm sure there are many ways to use this set properly and it will take me some time to learn. The trial and error I have to go through for lack of good guidance is going to take quite a long time. But I am very satisfied with the set. I used it again today to cut a curved tongue on my router table with 3 router bits. No fuss no fuss just nice clean sheet piling. I also like the storage box. It's strong and holds the parts securely. All in all, I find the price-performance ratio very good and a good tool.