Output Jack Wrench

  • 8 Reviews
  • Write a review

A special slim wrench for easier access to a variety of output jacks.

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Output Jack Wrench

Item # 3703
In stock, ready to ship!


Total: $0.00
Quantity: 20


A special slim wrench for easier access to a variety of output jacks.

This special open-end steel wrench has a slim (0.075") design. It's designed to easily access the thin 1/2" mounting nut on an acoustic guitar endpin jack, without marring the nut. The other end accesses a 14mm mounting nut on a flush-mount output jack, as found on many solidbody guitars.

Because it's thin, the wrench helps avoid damage to the nut, the control cavity wall, and the often crowded circuitry nearby. It's the right tool for the job, and helps make output jack installation faster and easier.

This product is made exclusively for Stewart-MacDonald by

Ratings & Reviews

Output Jack Wrench

  • Based on 8 Reviews
Write a review

So hndy to have

By Jonathan @ Feline Guitars from Croydon, Surrey, UK
(Customer's Reviews) Thursday, May 01, 2014

Makes the job so much easier - especially as the thickness means it doesn't get in the way like a lot of wrenches would.

Great Tool!

By Dano Dave from Broussard, LA
(Customer's Reviews) Wednesday, September 05, 2012

This is a great and well made tool that does exactly what it is intended to do. No more trying to fit a fat wrench on to the nut on end pin jacks.

Wish I'd had this a long time ago.

About time...

By Long Huynh from Arlington, VA
(Customer's Reviews) Monday, July 09, 2012

This is a great little tool. I'm surprised it wasn't invented earlier. Prior to finding out about this wrench, I used regular wrenches that couldn't get a grip on thin nuts, the result being damage to my guitar's finish. I liked this tool so much I bought a second one.

Output Jack Wrench

By Guitarzan from Albuquerque, NM
(Customer's Reviews) Monday, June 25, 2012

Handy little wrench, fits jack and knob nuts. Hole pre-drilled through it hangs right on your bench.


By gregf from michigan
(Customer's Reviews) Sunday, December 11, 2011

Quick and easy to use.

Handy as a pocket on a shirt!

By Steve Fazekas from Sarver,Pa.
(Customer's Reviews) Wednesday, August 24, 2011

Slim and trim, the output jack wrench is a keeper!

must have

By Raj Pereira from dubai, UAE
(Customer's Reviews) Friday, July 08, 2011

great toll to have ...


By mmoorecarpentry from Foxboro,MA
(Customer's Reviews) Wednesday, December 08, 2010

I recently repaired (for the umpteenth time)a strap post output jack that I installed in my Epiphone El Dorado in early 80's- a Martin passive bridge saddle pickup. The nut on the inside of the body of the guitar has always been infuriating to tighten up each time I changed my strings, and the strap continually loosened it up, causing downtime for the guitar between repairs. I screwed an output jack wrench to a short length of wood dowel cut on a slight angle. With the wrench slightly angled forward I was able to fit it in the body and still turn it with a firm grip quite comfortably compared to my many previously unsuccessful attempts. Thanks for the trade tips! Mike

Shown on page 27 of our latest catalog.