Seam Separation Knife

  • 13 Reviews
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The ideal knife for removing tops, backs and fingerboards from most instruments.

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Seam Separation Knife

Item # 4465
In stock, ready to ship!


Total: $0.00
Quantity: 20


The ideal knife for removing tops, backs and fingerboards from most instruments.

The stiff 3-3/4" x 3/4" high-carbon steel blade has a long knife edge that is capable of cleanly entering narrow cracks for separating a glue seam.

The gentle wedge-shaped cross-section exerts the ideal pressure to help the glue yield, yet doesn't tend to cut into the wood. The blade can be heated and moisture applied to help speed the work. Hardwood handle.

Trade Secrets! Newsletter

Using a "swiss cheese knife" to fix the back on a 1923 Gibson

Dan Erlewine's working on great old Gibson L-1 with back problems. The challenge: how to fix this on a budget today, in a way that won't interfere with more thorough repair work in the future.

Ratings & Reviews

Seam Separation Knife

  • Based on 13 Reviews
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Excellent repair tool

By David Yelverton from Felixstowe, UK
(Customer's Reviews) Wednesday, March 23, 2011

This tool does everything it is supposed to and makes hitherto tense jobs surprisingly easy. I first used it to separate the veneers on the resonator of an all-wood banjo I was restoring.

The angle ground on the blade acts as a gentle wedge when separating glue joints but doesn't allow the edge to dig into the wood or wander. Used cold or with a little applied heat it allowed me to tackle most separation jobs with increased confidence.

Great tool

By Ronnie Rafter from UK
(Customer's Reviews) Tuesday, January 04, 2011

Great tool. First time I used it was to remove head veneer on a warped neck. Did such a great job I was able to reuse original veneer.

Shoe Knife

By Bigriver Guitars
(Customer's Reviews) Friday, October 22, 2010

Yes, I said shoe knife. I worked in a pattern shop for Chrysler in the 80's and these were handy little knifes we used to fillet and shave Styrofoam. I could not find them until I saw them at stew mac. They have a thin, flexible blade that sharpens easy and is nice for opening cracks and slicing grain repair wood.

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Shown on page 29 of our latest catalog.