Enhanced tuning efficiency The guitar string winder head tool with a motorised coil provides a seamless tuning experience. It adapts to all motorised spools, improves tuning efficiency, and helps you achieve accurate pitch quickly. Fast string changes Built from durable metal and ABS, this tool offers wear-resistant support for guitarists and facilitates instrument maintenance with reliable performance. Smooth tuning With the winder, you can reach the correct pitch with minimal effort. Quickly loosen or tighten strings on acoustic or electric guitars, making tuning straightforward and less frustrating. Effortless re-stringing The unique guitar string winder design simplifies re-stringing, saves time, and allows easy removal of bridge pins for a smooth tuning process. Compatibility and use - Suitable for acoustic and electric guitars with motorised spool tuners - Durable metal and ABS construction - Lightweight and portable for on-the-go use Use scenarios - Live performance: quickly change strings between songs to minimize downtime - Studio setup: re-string and tune guitars efficiently during recording sessions - Home maintenance: routine string changes and instrument upkeep with ease