1. Cutter winder Functions It’s a 3 in 1 tool that provides multiple functions such as cutting strings, removing nails, winding strings, etc., can easily meet your performance needs, and bid farewell to the trouble of finding professionals to adjust time and money! The guitar tool is easy to operate and can complete the work in a short time. It is a choice that you should not miss if you love music. Features Made of high strength steel, easy to cut extra string no matter how thickness it is. With a handle designed for efficient and comfortable use and a peg winder that fits both vintage and modern basses. Fits on virtually all guitars, banjos, and mandolins, truly making it a must have for every instrument case.