Hexagonal Headstock High Performance Bridge String Winder AdjusterSpecifications:It is indisputable that it will help you replace old damaged parts of your guitar, and the bit can also help you quickly adjust and fasten the strings for use, as well as prevent the strap from slipping. The goal for you to be able to easily adapt to this is that this guitar head mount is designed with a swivel head for installation and use, and the solid texture will give it a long service life. By making plastic and metal, the drill bit will be sturdy and wear-resistant. The length of the product is 6.6cm, width is 2.4cm, height is 2.4cm. Suitable for quick adjustment of guitar strings. Item Name: String Drill Material: Metal Features: Fast Turning, Solid, Hard Color: BlackSize Details:6.6cm x 2.4cm x 2.4cm/2.6" x 0.94" x 0.94" (Approx.) Notes: Due to the light and screen setting difference, the item's color may be slightly different from the pictures. Please allow slight dimension difference due to different manual measurement. Package Included:1 Set of String Drill (2 pcs)