I ve been sent 3 16 which is too small and 7 32 which is too big although i ordered them in metric.
Allen key won t fit in truss rod.
It fits well on the sides but won t drop into the recess.
I didn t want to risk damaging the hex head and or the guitar by trying to use adapt a standard profile hex key.
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.
It fits well into the truss rod end and enables easy.
But if your guitar has the original truss rod some squiers take a 3 16 allen key.
That s a silly rumor.
The truss rod on my martin gpcpa5k needed some minor adjustment.
You can adjust the truss rod with a nut located at one end.
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.
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.
I ordered some to adjust mine but they won t fit.
That s about 4 75mm so metric keys aren t going to work.
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.
The hole in the truss rod nut is kinda shallow.
I ve now tried 6 or 7 allen wrenches but none will fit.
Fender doesn t use any secret special sizes for their hex sockets.
Anyone know what size hex key fits a yamaha pacifica truss rod.
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.
The business end of the truss rod is recessed deep within the sound hole.
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.
The keys are always a few thousandths under the nominal wrench size.
Finish or other gunk can get in there keeping the wrench from engaging.
Click to enlarge photos 133486 133487 the socket is too long for the cutout access to the truss rod adjustment nut.
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.
