Cudeman Quercus Green Canvas: the bushcraft knife born from the BS9 project
The Cudeman Quercus goes far beyond being a simple outdoor tool. It first appeared in 2017 as the very first model developed by Cudeman together with the BS9 Group, under the direction of Jose Sabater, whose signature is engraved on the back of every unit as a certificate of origin. As each piece also carries its own serial number, no two examples are alike, something that makes it highly sought after by collectors and survival enthusiasts in equal measure.
Its entire design rests on a set of well-resolved technical solutions: from a versatile handle that allows both a forward grip for fine work and a rearward grip for chopping, to a full tang construction built for demanding use. Balanced and with a proven track record, this knife stands among the standout references made by Cudeman in Albacete.
Details that make the difference
- Impact protection: the American canvas is set on the inner face of the area where the handle meets the blade, so you can baton without striking the scale material directly and without any risk of cracking.
- Friction fire aid: a bushing housed inside the handle is designed to act as a support or pusher when generating fire by friction, simplifying this essential survival technique.
- Three grip positions: the thumb notch makes heavy-duty tasks easier, the central grip is ideal for clean cuts, and the wide rear section takes advantage of momentum when chopping.
- Versatile drop-point tip: its geometry combines penetrating power with strength, well suited to all kinds of field work.
Steel and edge performance
The blade is made from molybdenum vanadium steel with a hardness of 54/56 HRc. It is an alloy highly valued in the outdoor world because it combines toughness against impacts with easy maintenance. The satin finish and the grind aim for a fluid cut and, above all, allow you to bring the working edge back to life out in the wild with basic tools, so the knife is always a help and never a hindrance.
Construction and durability
This is a solid piece 3.8 mm thick with remarkable structural strength. The stainless steel Allen screws and the brass bushings keep the assembly perfectly tight, with no play. Alongside its suitability for batoning, there is a hammer function built into the pommel that adds extra uses around camp without weakening the tool. Despite its obvious toughness, it is best used responsibly to preserve its structure and finishes.
Handle and ergonomics in real use
The green American canvas scales with red spacers display an attractive snakeskin-like look and, on top of that, offer one of the finest grip textures around. This material is extremely durable and, far from becoming slippery, actually improves its grip when wet or dirty, a key safety detail in harsh conditions. Its anatomical profile has been studied to spread out pressure and reduce fatigue during long days.
Sheath and available references
The sheath comes with the knife, handcrafted in the Cudeman workshops. It is made from high-strength black leather to ensure safe and comfortable carry. Depending on each user's kit, the model is offered in two versions:
- 160-F: supplied with the multi-position black leather sheath, designed to hang from the belt vertically or horizontally depending on the terrain.
- 160-FC: the complete variant, which adds a survival kit over the leather sheath with a sharpening stone, a signal mirror, a firesteel and high-strength paracord for any unexpected situation.
What it is for
- Signature bushcraft: born from a specific BS9 design, it is a perfect match for those who practice primitive fire and shelter building.
- Technical survival: its serial number and batoning capability make it ideal for emergency kits where the tool must withstand the unexpected.
- Hunting and outdoor activities: the drop-point tip and adaptable ergonomics let you prepare game or food with the same ease as cutting wood.
Care and maintenance
- Clean the blade after every outing, especially if it has touched resins or plant acids, to preserve the factory satin finish.
- Dry the piece thoroughly before returning it to the leather sheath, keeping moisture away from the molybdenum vanadium steel.
- The canvas is very hard-wearing, but it appreciates an occasional wash with soap and water to remove grease or mud and restore its original feel.
- As this is a numbered piece, do not apply aggressive abrasives over the engraving so the serial remains legible.
- Store it in a dry, well-ventilated place and make sure the sheath does not trap ambient moisture for long periods.
The Cudeman Quercus (160-F/160-FC) represents a chapter of Spanish knifemaking: a signed and numbered tool, conceived by experts for those who will not settle for less in the wild. Available at Navajeria with shipping across mainland Spain.


