Detail 01
Bullet-shaped tip
Seats inside the jack barrel so you turn the nut, not the jack body. That is what protects the wiring.

Independent shopping perspective
Small hand tool for tightening a guitar's output jack nut. For anyone whose jack keeps working loose and spinning the wiring.


Strong match
Consider the trade-offs
What matters in use
Catalog numbers tell only part of the story. These are the details most likely to change how this product feels, sounds, or fits into a setup.
Detail 01
Seats inside the jack barrel so you turn the nut, not the jack body. That is what protects the wiring.
Detail 02
Sized for standard 1/4 inch instrument jacks. It is not a general-purpose nut driver.
Detail 03
No power needed. Hand torque is the point, it keeps you from over-tightening and cracking the finish around the jack.
Detail 04
Small enough to carry to shows, which matters because a loose jack usually shows up mid-gig.
Final check
Product questions
Straight answers to the questions shoppers most often ask about this product.
It grips the jack from inside so you can tighten the outer nut without the jack body spinning and twisting the wires soldered to it.
Only if the crackle comes from a loose jack. Crackle from a cold solder joint or worn contacts needs work inside the cavity.
It fits standard 1/4 inch instrument jacks, which is what most basses use. Barrel-style jack plates may need a different approach.
No. You work at the jack itself, so the strings and the rest of the instrument stay as they are.