• 4mm & 5mm Guitar Truss Rod Wrench, Allen Wrench Tool Ball End for Martin Acoustic Guitar, Truss Rod Adjustment Deep or Narrow (Black)
  • Guitar Truss Rod Size :2 Pack Ball end with 1x0.16" (4mm) & 1x /0.2"(5mm), Works perfect for Martin
  • Made of steel material, super sturdy and tough ,not easy to break.
  • L-shape truss rod, convenient to insert the sound hole and adjust the neck.
  • Designed to the adjusting hole of the guitar neck relatively deep. Adjust the guitar neck straight ,suitable for Martin guitar.

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  • 4mm & 5mm Guitar Truss Rod Wrench, Allen Wrench Tool Ball End for Martin Acoustic Guitar, Truss Rod Adjustment Deep or Narrow (Black)

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