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Home : Tools : Special tools for Brace repair : Scissor Jack

Scissor Jack


Read 13 Reviews   |   Write a Review

Perform repairs where your arm can't reach. Our versatile Scissor Jack lets you perform tricky repairs inside an acoustic guitar with ease.

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Scissor Jack

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Item# Description In stock Price Quantity
0490 Scissor Jack Yes
$95.00
3 or more $85.50  


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Details
 Pictures
 Video
Magnets make tricky interior alignment easy!
Many hours, a pile of prototypes, and inspiration from luthier Freddie Cisneros, went into the development of our Scissor Jack. There's no other tool to match its versatility and ease of use for interior acoustic guitar repair work:
• Holding braces, repair cleats and bridge plates for gluing
• Aligning the sides of a crack for gluing
• Supporting a fretboard over a guitar body for installing frets
• Simulating string tension on an unstrung guitar top, for accurate bridge saddle work and neck resetting

The Scissor Jack has smooth thumbscrew height adjustment. Best of all, it's easy to add the flexible extension cable supplied with the jack, so you can operate it deep inside the guitar where your arm can't reach!

One more cool feature: it comes with magnets. They help you position the jack and align exterior cauls in lots of versatile ways that make tricky clamping a LOT easier.

The Scissor Jack has sturdy machined aluminum, brass and steel parts for durability and long life in the busy repair shop. The glue-resistant polyethylene cauls are specially recessed for the supplied magnets (the jack can be used with or without the magnets).

Minimum height        2-1/4"        (57.15mm)
Maximum height 4-3/4" (120.65mm)
Caul diameter 1-3/4 (44.45mm)
Magnet diameter 1" (25.4mm)
Extension cable length        10-7/8"        (276.22mm)

Tips for using the Scissor Jack:



Use cauls to help spread the clamping pressure. Here the jack is applying pressure to a soundboard X-brace, while sitting on a caul that spans two back braces.



Here we're using exterior cauls on both sides of the guitar, to give the jack something to push against safely.


Magnets make caul alignment easy. A few examples:



With a steel washer (or magnet) outside the guitar, the jack hangs upside down, ready to hold a crack repair caul in place.



Notice the exterior cauls.



The gluing rig was easy to make; simply a 1/2" repair magnet screwed to a wooden dowel.



Here's a curved wooden caul that matches the curve of the guitar side. It has a magnet attached that holds the jack.


Warning: Seriously strong magnets!
The magnets supplied with our Scissor Jack are made of rare-earth neodymium boride. They can magnetize, degauss, or re-polarize any ferrous or magnetic material, including electric guitar pickups. Keep them away from magnetic storage media such as floppy discs, cassette and video tapes, as well as pacemakers, computers, CRTs, TVs and watches. Keep these magnets out of the reach of children! If more than one magnet is swallowed, they can attach to each other and cause intestinal perforation or blockage, which can be fatal.


Workin' in the soundhole with the scissor jack and a mirror
Workin' in the soundhole: it's crowded in here!
Workin' in the soundhole with the scissor jack and a mirror Read more

In this issue:
Dan Erlewine's got a repair that needs repairing again. Working inside the guitar body is too tight for comfort, but Dan shows some tools and tips that make it easier.
Read more...

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 Ratings and reviews
Scissor Jack
Scissor Jack
 
4.5 out of 5 stars
Based on 13 ratings Write a Review
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Displaying 1 – 10 1  2 >
4 10-03-2012
Great Tool,

Scissor Jack saves a lot of time when working "blind" inside of a guitar, a great idea. A little over priced though.

Fsoheili  NYC Read my reviews (12)
5 9-18-2012
Nicely made tool.

Doesn't get a whole lot of use in my shop, but I don't think there's anything I could use to replace it. Excellent design and execution.

Greg Robinson - Guitar & Amplifier Technician  Melbourne, Australia Read my reviews (54)
5 6-06-2012
Very handy to have

I used it to support a bridge i glued on a guitar with a offset sound hole. It worked like a charm.

DRL design company  Asheboro, NC Read my reviews (5)
4 5-27-2012
Works well, but.....

Just used this for the first time in a position inside an archtop guitar at which the "remote control" extension cable was essential. It worked well but I found that with the "remote control" you can achieve very limited torque/pressure with the jack.

Bob Long  England Read my reviews (7)
5 5-16-2012
Very Handy to Have

I've been trying to get by for years with those turnbuckle-style jacks, but I wanted better control.

This thing is great! I use this on my neck-jig and for proping up tops on acoustics with ease and precision! Wish I could afford a couple more of them.

Middleton Guitars  Southern California Read my reviews (51)
3 3-19-2012
Design gets 5, durability gets 1

We use this jack everyday to jack up the headstocks on our neck jig. It is a great design, but the pivot pins with the clips are weak. Drop it a few times and it falls apart. We changed all the pins out for machine screws with nuts and it stays nice and tight. I'm glad to have it, and if it came with screws and nuts it would be a solid 5 stars. Also, if you only use it lightly, you'll probably never have a problem.

SF Guitarworks  San Francisco Read my reviews (4)
4 3-02-2012
Need one more

Flexible extension cable could be a few inches longer. Works very well. Will be getting another soon

Greg J.  Austin, TX Read my reviews (3)
4 10-02-2011
A very useful and handy tool

I used it ten minutes after unpacking it! I needed to push out an endblock on a guitar that had been dropped, in order to align it with the top for gluing. I made up some spacers that bore against the neck block and the end block, cut such that the scissor jack was centered conveniently within the dimiensions of the soundhole. It worked with an easily adjusted precision. The reason I gave it 4 stars is that neither the knob nor extension stays put on the shaft. It needs a ball detent or other solution for this, though I suspect a ball detent would add considerably to the cost of an already moderately expensive tool.

Mark A. Kane  Cary, NC
5 5-04-2011
Ergonomic

Although the knob and cable do fall off easily, when you get used to it it's so clever. Pity it's so expensive, I want a couple more!!

Julyan Wallis, Guitar Doctor UK  Cornwall, UK Read my reviews (45)
5 3-29-2011
Scissor Jack Purchase and review

I found myself struggling quite a bit when it came to re-gluing bracing that was too hard to reach. I even tried to see if my wife could reach the lower bout bracing with the turn buckle style of jack, but there was no way, it was going to happen on this small Giblson guitar, I was working on. I finally decided to get one of the New Scissor Jacks and WOW! what a time saver.

I could really use a few of these to keep on hand for such hard to reach areas. It made the job of re-gluing not only possible, but done in a fraction of the time, even if I was able to reach the brace comfortably.
This is a great product!
Thanks!!

Dennis Kwasnycia  Chatham Ontario Canada
Displaying 1 – 10 1  2 > /\ Top of Reviews


Shown on page 22 of our latest catalog.
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