This guitar tool is a multi-fucntional string winder and bridge pin puller for guitar, bass, mandolin, banjo, dobro, ukulele and more string instruments. This tool fits virtually all tuning pegs, it can easily tighten the instrument strings. You can also use it remove the guitar pins, and assemble the drill adaptor with a power drill or screwdriver to quickly remove the pegs or pins. for string instrument maintaining and repairing, keeps your guitar in good condition. Features - Easy-to-use and multi-functional string winder, pin puller, drill bit hexagonal adapter. - Loosen and tighten strings by unwinding and winding at the tuning pegs. - Pull out with the notch in the handle. - Assemble the drill hexagonal adaptor with a power drill or screwdriver to quickly remove the pegs or pins. - Handy and portable string instrument repair and maintaining tool, keep your instrument in good condition. - Suitable for guitar, bass, mandolin, banjo, dobro, ukulele and more string instruments. Specifications Material: Plastic Color: Black Full length: Approx. 13.3cm / 5.2 inch Handle diameter: Approx. 2.2cm / 0.9 inch Handle length: Approx. 6.8cm / 2.7 inch Hole depth: Approx. 2.8cm / 1.1 inch Hole width: Approx. 2mm to 9.5mm Package list: 1 x Guitar string winder