Brace Repair Jack

  • 20 Reviews
  • Write a review

Simple fingertip adjustment. A real time-saver for holding a cracked brace, bridge plate or crack repair cleat while the glue dries.

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Brace Repair Jack

Item # 3544
Due 2-3 weeks
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3 or more $8.10
10 or more $6.88
Quantity Discount Prices apply when you buy multiples of the same item number.
Total: $0.00
Quantity: 20


Simple fingertip adjustment. A real time-saver for holding a cracked brace, bridge plate or crack repair cleat while the glue dries.

It has simple fingertip turnbuckle height adjustment, and glue-resistant cauls.

The 7/8"-diameter (22.23mm) feet are glue-resistant HDPE (high-density polyethylene), one flat and one grooved to fit over a brace. The jack extends from 3-5/16" to 5-1/4" (84.14mm to 133.35mm).

This product is made exclusively for Stewart-MacDonald by

Trade Secrets! Newsletter

Video: Gluing a Martin D-35 back brace

This issue of Trade Secrets is a video: Dan Erlewine glues a Martin back brace, using Scissor Jacks along with tools you can make in your own shop. After this video, we developed the Brace Gluing Wedge to simplify this job and reduce the number of tools needed.

Ratings & Reviews

Brace Repair Jack

  • Based on 20 Reviews
Displaying 2 of 2 1 2
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Reasonable value and quality

By David Yelverton from Felixstowe, UK
(Customer's Reviews) Friday, August 05, 2011

These brace jacks operated as expected, i.e. not especially easy to manipulate one-handed. Nonetheless in many repair situations they are proving useful. In the more difficult situations I still find Sloane style jacks more useful and easier to operate. The StewMac jacks proved too long to use in a small flamenco guitar repair though. Although I have seen complaints about the basic quality of these jacks I am perfectly happy that they are adequate for most tasks.

Gets the Job Done

By Autumn Acoustics from Cincinnati, OH
(Customer's Reviews) Monday, June 06, 2011

Gluing down loose braces in cramped spaces on vintage classical guitars is a test of anyone's patience. Sure, I wish these jacks would cost less (like the high volume generic parts at the hardware store), but I'm glad I didn't have to spend time making another project on top of the original guitar repair project. Bought a set of 3 and after learning how to place and tighten the first one by feel (no view at all), they worked fine.

Brace Repair Jack 

By Steven K from Columbia, Maryland
(Customer's Reviews) Tuesday, May 10, 2011

Works well,but not the quality S.M. is known for.

I have to Laugh

By doc from southport, nc
(Customer's Reviews) Sunday, April 03, 2011

Cheap, quick and dirty. Easy to adapt to a myriad of simple in the box tasks. They are not made to do guitar assembly, rather they are made to assist the repair luthier. They are not necessarily D.I.Y. stuff. Frankly DIY's should bring brace repair to the pros if possible. [Not trying to be 'funny']. We don't charge much, and can do a better job the first time....and yes...using these 'bad' tools. Consider also: Do you know how long it takes to make this tool with hardware store stuff? Too LONG!! Well worth the price for sure. GREG GUITARS LLC


By Not Square from Mountain View, CA
(Customer's Reviews) Sunday, March 13, 2011

Some cork padding applied to both ends seems essential.

not what you'd expect from stew mac

By DT Hawkins-Custom Guitar Tech from Clarksburg WV
(Customer's Reviews) Tuesday, March 01, 2011

This brace is not at all well made and is hard to use. The ends keep turning and it falls out under pressure due to the slick surfaces i had to place double sided tape on each end of it to keep in place. This is not the quality i have become accustom to with stew mac, and the price is way to high. Stew Mac is a great company, this product just falls short of their rep.


By Parhal from Wisconsin
(Customer's Reviews) Monday, January 31, 2011

I have to agree with some earlier reviews. These clamps are overpriced and not up to the quality standard I usually see from Stew Mac. Yes, they will help you do the job, but I am hoping for an improved item in the future.

Good Idea poor quality

By D Tripp from Argyle NY
(Customer's Reviews) Wednesday, November 10, 2010

They will work but not the quality I expected. Hard to use inside body with one hand.

Back brace re-gluing

By Paul Jacobson from Cleveland, MO
(Customer's Reviews) Monday, August 16, 2010

I purchased four of these specifically for re-gluing loose back braces on classical guitars, where glue joint failure is most common, but found it impossible to single-handedly install them so they could be put to use.

Works, but poor value.

By Daniel Heo from Hyattsville, MD
(Customer's Reviews) Saturday, August 07, 2010

It works, but the center piece is a little flimsy. You could do better at a hardware store, especially for the price.

Displaying 2 of 2
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Shown on page 22 of our latest catalog.