With a small and light structure, this tool is easy to carry and allows for quick measurements without additional devices, perfect for field work by engineers and instrument maintenance technicians to improve work efficiency The metal wire and string diameter tool features a 2mm thickness design for high accuracy, ideal for measuring wire and string diameters with exactness, addressing the limitations of traditional measuring devices Ideal for Instrument Maintenance: Specifically instrument maintenance personnel, music enthusiasts, and professional tuners, this tool ensures exact measurement of wire and string diameters, maintaining the best playing condition of musical instruments This tool excellent wear and resistance, making it suitable for extended use by specialists and reducing the need for frequent tool replacements The typical length of this tool is suitable for measuring various dimensions of wires and strings, making it a multi-functional device for specialists and hobbyists alike, Manufacturer: RGYBAO