Some manufacturers including larrivée and collings use a long bent hex key to adjust the truss rod.
Allen key truss rod.
Use the martin guitar allen truss rod wrench to adjust your guitar s neck to achieve the action you desire.
Different manufacturers put them in different places but they re usually at the headstock under a cap just behind the nut or where the neck joins the body just under.
These builders don t drill a hole through the cross strut brace glued under the top between the soundhole and neck block and the curved key lets you reach around the brace to engage the truss rod located in the neck block photo 2.
Tacklife hex key allen wrench set 26 pcs sae metric allen wrench set with long arm ball end 3 64 3 8 in 1 27 10mm heat treated chrome vanadium steel hhw3a 4 6 out of 5 stars 271 13 97 13.
You can adjust the truss rod with a nut located at one end.
Future when you re adjusting the truss rod make sure the allen key is seated properly in the truss rod nut.
The neck of most guitars has what s known as a truss rod which is a one or two piece adjustable metal rod that goes down the inside of the center of the neck.
I didn t want to risk damaging the hex head and or the guitar by trying to use adapt a standard profile hex key.
2 allen wrench hex key for guitar locking tremolo bridge and nut.
Push it all the way in.
Most modern guitars have an allen bolt that is adjusted with you guessed it an allen wrench or key.
This tool is made for the job.
Kaish 2 sets m3 and m2 5 guitar hex allen wrench key for floyd rose tremolo bridge.
The truss rod on my martin gpcpa5k needed some minor adjustment.
The business end of the truss rod is recessed deep within the sound hole.
Includes a 4 1 2 bent leg.
Find the right truss rod wrench size needed in a database of over 75 guitar and bass brands including fender prs gibson martin ibanez taylor jackson takamine schecter yamaha breedlove and many more.
An old school truss rod bolt at the bottom of the neck image credit.