Tag Archives: Jade

Reprofiling Intent: Turning the Yojimbo 2 into a Woodcraft Tool

There’s a quiet irony in taking a knife designed for confrontation…
and teaching it patience.

I’ve written more than once about Jade, my 8 years old Spyderco Yojimbo 2 Sprint Run—a blade that was never meant for the forest.
It was conceived for speed, control, and intent in a very different kind of environment.

But strip away the narrative, and what remains is geometry.

And geometry doesn’t lie.

Somewhere along the way, it became clear that I wasn’t alone in that realization.
At the last Minimeet, I had the chance to handle a design by Michael Janich—a fixed-blade prototype unmistakably rooted in the Yojimbo 2’s DNA, yet openly aimed at bushcraft.

That moment changed the perspective.

Because it confirmed something simple: using a Yojimbo 2 in the woods isn’t a vue de l’esprit.
It’s not a conceptual stretch, nor a contrarian experiment.

It’s a natural evolution.

I wasn’t alone in seeing it as a whittler, a wood cutter, a tool for controlled work rather than confrontation.
It’s my reinterpretation—since 2018—of what a reliable forest knife could be against the grain: hollow grind and very pointy wharncliffe.

  • Steel: CPM M4 — aggressive, unforgiving, alive… and tough.
    Tougher than S30V, which matters when your Yojimbo carries a fine, precise tip.
  • Edge: Convexed — reshaped for efficiency, and just as importantly, easy maintenance on leather.
    A working edge, not a showroom finish.
  • Spine: Rounded — softened for control, especially in push cuts driven by the thumb of my left hand.

These aren’t cosmetic tweaks.
They are functional decisions that shift the knife’s center of gravity—from tactical response to wood interaction.
Because using a knife gently on a piece of wood is not just a task.
It’s a sensation. And that sensation—quiet, controlled, almost meditative—is where the real value lies.
Cutting wood is not only about efficiency.
It’s about pleasure.

And pleasure is an essential part of the cutting experience with a CPM M4 thin edge. That straight edge doesn’t fight the material—it applies a constant, controlled pressure through the cut.
It enters, separates, and exits with a continuity rarely found in production folders. Michael Janich has been advocate of that design for 25 years. And it seems he has taken his own Yo2 in the wild too.
Because that’s where the Wharncliffe reveals its truth.
Its straight edge isn’t a limitation—it’s an advantage for whittling.

Precision cuts become natural. Predictable. Repeatable.
And then the thin, convexed edge takes over.

Suddenly, even hard, dry wood yields with ease:

  • cuts deepen without resistance
  • fibers part cleanly—almost polished under the thumb
  • the blade tracks perfectly straight, as if guided on rails

What is often misunderstood as a “tactical” profile becomes something else entirely: a controlled cutting line—precise, deliberate, uncompromising.

Even feathersticks are no longer a technique.
They become a rhythm. A mantra.
Notches become intention.
Every movement feels deliberate. In total control.

Then comes the detail most people ignore: I have rounded spine on my Yo2. This is where the knife becomes an extension of my hand.
No more sharp edges digging into the thumb.
No hesitation when applying pressure.
Just a direct transfer of force, guided and stable.

In extended carving, this changes everything.
You don’t adjust your grip to the knife.
The knife adapts to your movement.

But CPM-M4 is not a forgiving companion.
It stains.
It reacts.
It asks for care. This is not Magnacut. 😉

But in return, it offers something rare: a lasting, aggressive bite into the material. In wood, that translates directly to efficiency.
Less effort. More control. Longer sessions without compromise.

It does raise a question, though—one worth exploring.
How would a Magnamax Yojimbo 2 perform in that domain?
Magnamax sits close, in spirit, to a stainless K390—high wear resistance, a keen, persistent edge in a rustproof package.
That could change the balance for a wooden Yojimbo 2.
Either way, it would be an interesting evolution of a SD tool into a wood knife.
But back in 2018, when Jade took shape as a sprint run, CPM M4 was the undisputed king of the hill.

Let’s be clear: Jade is not my traditional bushcraft knife.

  • It won’t baton logs
  • It won’t split kindling with brute force
  • It doesn’t pretend to be indestructible

But that’s precisely the point. This knife exists in its own different space:

Where cutting is not about survival theater,
but about precision, control, and understanding the material.
Calm and enjoyment.

It remains a folding knife and its tip is fine, by design.
But within its intended envelope, Jade performs with a clarity few knives achieve.

Because some knives are defined by their makers and others are polished by their users.
Jade belongs to the latter.

What began as a tactical tool has become something quieter, more refined:
modern woodcraft instrument, shaped not by doctrine, but by experience. Convex at the edge, softened at the spine—
this is not a knife that was designed for the woods.
It’s a knife that learned them.
Jade the quiet warrior

Spyderco Yojimbo2 C85GM4P2 CPM-M4 The Jade Warrior.

This is a bud of an article about the BladeHQ exclusive Yojimbo2.

At least there is picture.

Story will come later in multiple update.

I have reviewed the Michael Janich’s Yojimbo2 many time here.
And I have been waiting for a tougher alloy for a long time: CPM-M4 is one of my favorite steel.

Why ? Because it’s take a razor sharp edge and keeps it, it’s a tougher than stainless steel super steel and its edge stability is better: no chipping or warping in my uses. Of course it will get stained but that is the part of his multiple charms. This is a steel used in blade competitions and Gayle Bradley is a fan of it.

The Yojimbo2 design asked for a very thin point and a stronger, tougher steel. M4 is a must if you want to use it (like myself) in everyday chores… hard !!
Because such great ergos ask for hard working.

Compared to my previous YO2, the closing sound “TICK” got a much higher pitch than my S90V version. I had noticed that kind of higher pitch on another super tool steel: Maxamet.

Does it mean the steel is harder ? Will see.

So stay tuned!

I have changed the OEM clip for this one.


It’s a shortest deep carry clip.

The Para 3 in Maxamet got the same high pitch TICK.

Dirty blade ready for some chores.
Both knives are excellent EDC. The Yo2 offers really powerful cuts on wood.
A word which comes back a lot with my Yo2 review is “power”. The heft of the saber ground hollow blade and the confortable thick spine is a call for pushcuts and “very light” chopping. You will see what I mean in a few photographies…

Deshouldering and starting to get a thinner edge. The factory edge is excellent though.

“Ghost” and “Jade” together: same materials.

The handle lengths are different just because one is standing on its clip.

Push cuts are easy.

This is the kind of “very light” chopping cuts which are made in blink of an eye.
The Yo2 is a great trimmer. The edge bites deep and the straight edge won’t let go.

It’s very efficient !

M4 steel erases any fear of breaking the thin tip easily but I do respect too much my knife to try any lateral forcing. At least I’m no afraid to use that blade tip hard !

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Rinsing and cleaning the blade in a spring stream. No real patina so far but soon it will come. M4 get darker in a slow way on my experience: no hurry !
But that Jade handle goes so well with natural environments…

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There is a lot of charm in the Yo2: the heavy blade smooth action, the straight edge power and the great ergos ! Nobody seems to notice it while used in a restaurant, the Jade helps a lot to make it less a weapon and more a tool.

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Military C36PIN CPM M4 Exclusive Run — Ghost in the Machine

For a funny reason I give name to knives I keep. It gives them more personality. For a strange reason all my C36 Military got name starting with G like Glesser.
My Military Sprintrun CPM Cruewear is “Gandalf” because of its grey handle.
My new Military with Natural G10 (or Jade G-10) and CPM M4 blade will be name Ghost. It’s an exclusive run for Blade HQ.

This is the first time I got the chance to handle the new version: no spacer, bigger lanyard hole, bigger screws… My first Millie “Glesser”, back in 1996 was already a new version with CPM440V (S60V) and the three screws clip. 21 years later here is what I consider the apogee in this design: a blade alloy I really love and a “light” construction.
Gandalf and Ghost weight almost the same: 124g versus 123g on my cooking electronic scale. This is a light package with a lot of cutting power.
I also love the fact that the Jade handle makes it very sheeple friendly and less “military”.

Since I have reviewed the M390 CF version and the Titanium handle version.

Now I have really convexed the grind on Gandalf for wood working.
But I wonder how it will compare to CPM M4 on Ghost.
It will be the subject of another review.