In this article we want to share with luthiers and those who are just planning their first repair or installation of frets, tips and parts of the experience of luthiers whose hands give life to beautiful musical instruments. They will tell you about the choice of materials, fret instruments, cutting the slots, polishing, etc. In such a fine art as the creation and repair of musical instruments, every detail is important. Therefore, tips from professional and successful luthiers will greatly help you on the long path of a luthier, full of experiments and discoveries. We present to your attention tips on working with frets from Highline Guitars, Sweet T Guitars and Monster Guitars.