2 PCS Truss Rod Allen Wrench Tool 4mm 5mm Ball End for Martin Acoustic Guitar(Black 5mm)

Features: Made of steel material, super sturdy and durable ,not easy to break. L shape truss rod, convenient to insert the sound hole and adjust the neck. There are grooves on the end of the handshake for easy application of force, can also install handle for the wrench. Designed to the adjusting hole of the guitar neck relatively deep. Adjust the gu itar neck straight,suitable for Martin guitar. Specifications: Condition: 100percent Brand New Material: Steel Weight: Approx. 42 66g 1.5 2.3oz Length: Approx. 75+126mm 3.0+5.0in Diameter: Approx. 4 or 5mm 0.2in Optional Type: Black 4mm, Silver 5mm, Black 5mm Package list: 2 * Guitar Wrench Other terms on the pictures are not included.