Instrument and amp jacks are notorious for coming loose. And with a shallow nut and recessed cavity, access can be challenging. Until now, that is. The GrooveTech Jack and Pot Wrench provide three thin-wall sockets - 1/2", 7/16", and 12mm - in a compact four-inch tool to handle the most common sizes of jacks and pots on instruments, amps, and other audio gear. Add a dab of thread locker, and you'll probably never have to deal with that loose jack again.
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