Guzeng Piano Tuning Hammer Wrench Tuner Spanner Tool

Description: Material: Engineering plastics & Steel Color : Silver & Brown Inner bore size: (Approx.) 0.65cm / 0.26inch Total Length: (Approx.) 15cm Handle Length: (Approx.) 10cm Features: Sturdy and smooth handle. L-shape design, easy to use it. Small and exquisite, convenient to carry. The metal shaft is made of hard steel, abrasion resistance. Specially designed for tuning of Guzheng and for most machine devices that have quadrilateral opening. Note: Please measure the tip size of your device before purchasing, make sure the size of your devices match with the wrench quadrilateral. Package includes: 1 x Square Shape Piano Tuner Tool