YGCQFH Guitar Truss Rod Wrench Set 2 Pcs, Guitar Truss Rod Allen Wrench Set, Includes 4mm 5mm Lengthened Ball End Truss Rod Wrenches, Suitable for Martin Acoustic Guitars & Bass, Precision Adjustment

• Varied Size Selection: 4mm & 5mm. Made of carbon steel & sturdy. Used to adjust the guitar neck straight, suitable for Martin acoustic guitars or other guitars that cannot reach with a regular hex wrench for truss rod adjustment
• Durable Construction: Made from high-quality steel, these Allen wrenches are tough and long-lasting. They resist breakage, ensuring that your guitar is always in prime condition
• User-Friendly L-Shaped Design: The L-shaped wrenches make it easy to insert into the soundhole for precise truss rod adjustments. The extended length facilitates use in tight or deep spaces
• Deep Reach Design: Specifically designed for the deep adjustments required by Martin guitars, this tool maintains neck straightness and stability. It also works well with various other instruments, including electric guitars and basses
• Broad Applicability: This versatile tool is not only perfect for acoustic guitars but also useful for automotive, bicycle, and plumbing repairs

This is a set of wrenches specifically designed for guitar adjustment. Do they fit my acoustic guitar? Yes, there are two 4mm and 5mm wrenches included, which cover most acoustic guitar truss rod screw holes. Also, these two wrenches are extended, which means they can also be used to adjust the necks of guitars that have deep and narrow adjustment holes, such as Martin guitars. Of course, they are also suitable for guitars with standard adjustment holes, such as Yamaha, Gibson, Ibanez, Takamine, etc. We usually call it the "ALL-PURPOSE GUITAR WRENCH SET". Name: Guitar wrench tool Quantity: 2 Pcs Colour: Silver & Black Material: Metal & Carbon Steel Packing List: 2 Pcs Ball End Truss Rod Wrenches Include: 1x Guitar Wrench (4mm Silver) Weight: 20g 1x Guitar Wrench (5mm Black) Weight: 32g Note: Please allow slight error due to manual measurement. Thanks for your understanding. Monitors are not calibrated the same, so the item color displayed in photos may be showing slightly different from the real object. Please take the real one as standard.