Guitar Wrench, Metal Wrench Tool, 2 Pieces Truss Rod Allen Key 4 mm/5 mm Ball End for Martin Acoustic Guitar Truss Rod Adjustment(Black-4 mm)

• High-quality material: the guitar Allen keys are made of durable and corrosion-resistant steel material, which allows reliable and durable use.
• Function: These L-shaped truss rods are ideal for adjusting the sound hole and neck. They are specially designed to keep the guitar neck adjustment hole easily accessible.
• Easy to use: the Allen keys are equipped with grooves at the end to ensure easy force application. They can also be used with a handle for added comfort. The handling is very simple, and with these keys you can easily reach the sound hole and adjust the neck. They are a practical accessory for guitar tools.
• Durable and reliable: the keys are extremely wear-resistant and durable. The guitar truss rod ball head tool is used to lock the hex screws on the bridge with which the guitar neck is adjusted. They match Martin guitars and help you to properly adjust the mechanics of your acoustic and electric guitar, bass, banjos, mandolins and other stringed instruments.
• Application: the guitar truss rod Allen keys are perfect for adjusting the guitar neck and fits Martin guitars. The package includes one black 4mm and one 5mm guitar Allen key with ball head. They greatly facilitate the assembly of your guitar and are an indispensable addition to your guitar tool set.

Features: Made of steel, super sturdy and durable, not easy to break. L-shaped truss rod, convenient for inserting the sound hole and adjusting the neck. There are grooves at the end of the handshake for easy force application. In addition, a handle for the wrench can be attached. Designed to keep the guitar neck adjustment hole relatively deep. Adjust the guitar neck straight, fit for Martin guitar. Specifications: Condition: 100% Brand New Material: steel. Weight: approx. 42-66g Length: approx. 75 + 126 mm / 3.0 + 5.0 inches. Diameter: approx. 4 or 5 mm / 0.2 inches. Optional type: black 4mm, silver 5mm, black 5mm Package list: 2 x guitar keys. Other terms in the pictures are not included.