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KJ-140 Wide Centering Knife Jig

Symmetrical result on flexible knives

This well-balanced, patented jig provides extra stability when sharpening knives with long, flexible blades such as filleting knives. With the KJ-140 Wide Centering Knife Jig, you achieve symmetrical sharpening with the same angle on both sides of the blade. Regardless of the thickness and geometry of the blade, it will self-center in the jig, giving you the same result on both bevels. The longer clamp stabilizes flexible knife blades to prevent them from flexing, so that you get the same angle and pressure over the entire bevel.

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Why KJ-140 Wide Centering Knife Jig?

  • Centers long, flexible knife blades in the jig for optimal, symmetrical results.
  • The 5 1/2" wide clamp stabilizes flexible blades.
  • Centers tapered knives and holds them firmly.
  • An extra stop for tall knives, such as cleavers.
  • Ability to shape a slightly convex edge with a movement between the two stops.
  • Robust design – zinc-cast clamps and durable composite stops.
  • Well-balanced – most of the weight is focused on the clamps, which provides a more balanced feel when grinding.
  • Slides smoothly with low friction against the universal support.
  • Works with both Tormek T-4 and Tormek T-8, as well as older models.

Centering for symmetrical sharpening

When you mount your knife in the KJ-140 Wide Centering Knife Jig, the knife self-centers in the jig, whatever its thickness or geometry. This means that the jig centers everything from the thinnest knives to knives with a blade thickness of up to 10 mm (7/16"). It also means that knife blades that taper off from spine to edge and heel to tip are centered in the jig, providing symmetrical bevels on both sides of the blade. Easy setup, perfect results.

Wider clamp – more stability

The KJ-140 Wide Centering Knife Jig works in the same way as the KJ-45 Centering Knife Jig but has a wider clamp. The wider 140 mm (5 1/2") clamp stabilizes thin and flexible knife blades and provides more support for an even bevel along the entire blade. Of course it can also be used with larger knives with more stable blades, such as chef's knives.

Please note that the KJ-140 Wide Centering Knife Jig cannot be used with the SVM-00 Small Knife Holder. The KJ-45 Centering Knife Jig is used instead.

Guided freedom

Because the KJ-140 Wide Centering Knife Jig is positioned with the stop resting freely against the universal support, you are able to follow the shapes of the knife, always guided by the universal support as a reference point. This makes it possible to sharpen knives with different blade shapes, from fillet knives to recurve knives and classic chef's knives.

Well-balanced and ergonomic

The user experience has also been in focus in the design and construction of the KJ-140 Wide Centering Knife Jig. For the best grinding experience, most of the jig's weight is focused on the clamps, the part that is closest to the grinding itself. This provides a very well-balanced feel when it's used.

The end of the stop has been designed with ergonomics in mind. There is a flat surface to place your thumb on to secure the jig against the universal support. This little feature makes long periods of grinding more comfortable.

Specs and details


Freight weight 0,39 kg (0.86 lbs)




Precision cast zinc, durable composite


2 year warranty

Made in Sweden


Tormek Sharpening Class: Demonstrating the KJ-140 Wide Centering Knife Jig

Wolfgang and Sébastien show you how to use the KJ-140 Wide Centering Knife Jig to sharpen your flexible knives.

KJ-140 Wide Centering Knife Jig - Introduction

See this short video of how the KJ-140 Wide Centering Knife Jig works.

Included in the box

KJ-45 Centering Knife Jig comes fully assembled and ready to use.

  • Instruction for KJ-45 and KJ-40.