Q: Any commercially available jigs for recreating gullets for serrated knives?

B

bdaabat

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Jul 2, 2025
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Morning!
I'm looking for a jig (or another method entirely) to help with deepening or recreating gullets in badly worn serrated knives. Something that can be used to guide the process so that the cutting tool travels the appropriate interval between gullets and maintains the distance and cutting angle while grinding/cutting.

I've tried using diamond cutting tips for Dremel type tools to regrind the metal. The rotation of the cutting tip (at least for me) means that the tool tip wants to move laterally while in contact with the blade.

Thanks in advance!

Bruce
 
Knifekits dot com sells a serrations cutting wheel (not a serrated wheel...that's different) for cutting a serrated pattern. Alternatively you could measure and cut in the serrations manually with a diamond file, followed by a dremel point, be sure to keep the edge cool.
 
Thanks navman. I guess I was looking for something different (that maybe doesn't exist?). The cutting tool you pointed me to (thanks for that!) is an option to create a specific pattern of serrations on a knife that is being created.

What I was looking for was something that allows the user to lock in the blade grinding part to maintain a consistent angle and allow the blade grinding part to move laterally (and in the same plane) a consistent distance to create or deepen existing gullets uniformly. Ideally, the jig I'm envisioning would allow the either knife to remain locked into position and the blade grinding part to be limited in how it can travel to help create even gullets OR the other way around (grinding part locked into position and the blade held in a way that allows it's movement to be limited to help create uniform spacing and depth of gullets).

Or, maybe I just need to bite the bullet and get a diamond grinding wheel for serrations and either practice a bunch or create my own jig.

When I was practicing with the Dremel diamond tip, I totally boogered my two practice serrated knives (uneven spacing of the gullets and uneven depth of the gullets).

Bruce
 
Just heard back from Cliff at Curry Custom Cutlery. His suggestion:
Diamond wheel + Twice As Sharp arm.

Will need to save up a bit for that rig.

Bruce
 
I have used chainsaw files successfully many times as long as you are using knives under 64hrc. That method requires a steady hand and some patience but works well.
 
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