5mm Truss Rod Wrench, Allen Wrench Tool Ball End for Martin Acoustic Guitar Truss Rod Adjustment And Deep or Narrow Truss Adjustment.

Most guitar necks eventually need a truss rod adjustment at some point to ensure good intonation and playability, and this is done with a truss rod wrench. The 4mm wrench worked on my Telecaster and my Alvarez acoustic. The longer length of the wrenches makes them much easier to use for adjusting guitar truss rods. Be sure to check your guitar specs for the correct size of your truss rod wrench, as it is very important that they match. If you are a guitar player, it is important to have the necessary tools handy to keep your guitar sounding and playing its best. Though you may only need to adjust your guitar's truss rod once a year, or perhaps even less depending upon your circumstances, these wrenches are inexpensive and take up little space, and you will be thankful to have them when they are needed.

Seems well made, does the job. Works for many brands of guitar - mine's an Alvarez.

It worked perfect for my Martin d15m.

Just what I needed! My Charvel acoustic has this extended 24 fret fretboard which is cool but the truss nut is way up under it. I couldn’t reach it with a regular hex wrench. This was perfect and affordable.

Works fine with my Breedlove Companion. I needed a truss rod wrench with extra length , the adjustment bolt is too deep for a standard wrench . This also came nickel plated .

Needed the 4mm for my Eastman Acoustic and it fit perfectly.

Long enough.

A must have for Martin guitars with deep setting truss rods

Was looking for a hex wrench for the truss rod on a 2021 Fender PO-220E that has the truss rod by the sound hole. The 4mm hex wrench works. It’s really long and can reach the truss. This fender model is made in China.

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