Not every truss rod uses an allen key for adjustment for example taylor guitars need a special phillips head screwdriver and a 1 4 nut driver.
Allen key won t fit in truss rod.
The business end of the truss rod is recessed deep within the sound hole.
I ordered some to adjust mine but they won t fit.
Click to enlarge photos 133486 133487 the socket is too long for the cutout access to the truss rod adjustment 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.
This tool is made for the job.
Hey i got a fender mexican jazz bass somewhat recently and noticed it needed a truss rod adjustment but the allen wrench that came with it wouldn t fit.
That s a silly rumor.
Anyone know what size hex key fits a yamaha pacifica truss rod.
It fits well on the sides but won t drop into the recess.
Based on those numbers the standard strat bridge key is 1 5mm the truss rod key is 3 16 and the jazz bass bridge key is 1 16.
I ve now tried 6 or 7 allen wrenches but none will fit.
The truss rod on my martin gpcpa5k needed some minor adjustment.
Fender doesn t use any secret special sizes for their hex sockets.
Finish or other gunk can get in there keeping the wrench from engaging.
Now that i ve done a lot of homework i am ready to take on my first attempt at adjusting my truss rod but i ve run into this issue before i even get started.
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.
I didn t want to risk damaging the hex head and or the guitar by trying to use adapt a standard profile hex key.
You can adjust the truss rod with a nut located at one end.
But if your guitar has the original truss rod some squiers take a 3 16 allen key.
That s about 4 75mm so metric keys aren t going to work.
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.
It fits well into the truss rod end and enables easy.
The hole in the truss rod nut is kinda shallow.
Right before you try the hot wrench trick find a flat blade screwdriver that s a bit smaller than 1 8 jam it in there and turn it a few times to dig the gunk out of the hole without chewing up the sides.
