The guitar hexagonal wrench set with 9 kinds of gauge, widely used for adjusting the truss rod, guitar neck and hexagonal screws on , it makes your guitar more comfortable to play. Features: Truss rod hexagonal wrench set for most kinds of acoustic guitar, electric guitar and bass. It helps you adjusting guitar parts efficiently. 1.5mm, 2.0mm, 2.5mm, 3.0mm, 4.0mm, 5.0mm, can be used for locking hexagonal screws on the , or for the guitar neck adjustment. 1/20in for parts of Japan made Fender single roll , 1/8in, 3/16in for parts of America made Fender guitar neck adjustment. Made of carbon steel, durable and great wear-resistance. Specifications: Material: Carbon Steel Gauge: 1.5mm, 2.0mm, 2.5mm, 3.0mm, 4.0mm, 5.0mm, 1/20in, 1/8in, 3/8in Item Weight: 54g / 1.9oz Package Size: 10 * 4 * 1cm / 3.9 * 1.6 * 0.4in Package Weight: 55g / 2.0oz Package List: 1 * Set of Wrench Note: The guitar not included. Please notice the dimension of the wrench shown in the picture.