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As used at the Martin guitar factory
Toothing Iron
Our Toothing Iron is designed to add a little roughness, or "tooth," to ebony and rosewood gluing surfaces for better adhesion. It was inspired by the tool used at the Martin guitar factory to prepare bridges for gluing. Its tight parallel grooves give it the appearance of a flat file, but it works differently — the end of the tool does the work. It's made of highly durable tool steel, and you can simply grind the end flat again when the exposed "teeth" become rounded. Our Toothing Iron is 8-1/2" long, available in two widths, and is great for preparing bridges, fretboards, overlays and more. Useful for removing old dried glue, too.
Sold individually or SAVE when you buy the set of both toothing irons.
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Rough up surfaces before gluing
Using the Toothing Iron
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i-4872
Updated 11/07
Adding a little roughness, or "tooth," prepares a gluing surfaces for better adhesion. The Toothing Iron's sharp teeth score wood with tiny parallel grooves to rough-up the wood surface, especially on dense, oily woods as rosewood and ebony. These woods don't permit much glue to penetrate their fibers.
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Toothing irons are used by Martin Guitars and other guitarmakers when preparing guitar bridges and fingerboards for gluing. Toothing irons are also great for cleaning up old glue.
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Push or pull at any angle
Pushing or pulling the iron scores the gluing surface with small parallel grooves. Create grooves with the grain or across the grain.
We've found that vintage Gibson guitars often have grooves running lengthwise under the bridge, while vintage Martins have a crosshatch pattern.
For scraping and cleaning
The Toothing Iron is also used for scraping dried glue from the guitar top after removing a bridge.
Sharpen the Toothing Iron
Sharpen the tool by holding it against a belt sander or grinding wheel. Hold the tool perpendicular to the abrasive to grind the end perfectly flat and square to the sides. This sharpens the teeth.
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Shown on page 29 of our latest catalog.
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Details
Pictures
Instructions
