I have several cutting plotters from this company and am very happy with their work. This set is unparalleled in quality. Well made and well cut. I haven't assembled my CNC yet, but when I do I will be using these bits. In addition, you get a good selection of the most commonly used CNC bits. Whatever you're cutting, these bits will likely do whatever you need to do. As others have said, they are packaged very well. I really like these little plastic storage tubes, they provide safe storage. The price is good too. Very satisfied and would definitely recommend.