About Cizor
Cizor knives are crafted from one of the hardest man made materials in existence, tungsten carbide. The tip of the Cizor is perfect for penetrating and cutting a wide variety of materials. The polished cutting edge is ruthlessly sharp and the back of the small Cizor is a functional safety tool, which can break a car window in case of an emergency. The small Cizor can be carried with you anywhere, held securely in its silicone cap.
The small Cizor can be carried with you anywhere, held securely in its silicone cap.
Size Matters
The size and shape of the larger version references one of the most widely used hand held objects of the modern industrial era: the BIC Cristal pen, a design from 1950. The large Cizor feels much more substantial than the pen, but it enjoys the same ergonomics and balance. It will be right at home on a desk, performing fine cutting tasks.
Cizor will be right at home on a desk, performing fine cutting tasks.
How It’s Made
Not only the unique form factor, but especially the choice of material is what makes the Cizor knives stand out. Tungsten carbide is an extremely hard compound. Almost any manufactured object has been touched by it. For example, the aluminum and steel parts of your Apple products are most likely cut with tungsten carbide tools. The basic shape of the Cizor knives is formed out of a powdered state of the material, often consisting of pulverized recycled carbide tools. The finer details of the design are cut by diamond encrusted wheels. Diamond is one of the few materials in existence harder than tungsten carbide, and thus able to cut it. Tungsten carbide is much harder than steel, but therefore also less flexible, and more likely to shatter under tension. For that reason the tip design of the Cizor has seen many iterations to optimize its strength.
Safety Function
The tempered glass of a car window does not stand a chance against the conical back tip of the solid tungsten carbide small Cizor. When used in this manner, a tough 6061 aluminum barrier prevents the sharp tip of the blade from being forced into the cap during an impact. This safety feature was designed to prevent damage to the cap but more importantly to protect the user from injury caused by the sharp edge of the blade. If you ever find yourself in a situation where you need to use the Cizor in this way, protect your and any bystanders' eyes and limbs from the shattering glass. In addition you should be aware of your local laws regarding damaging other people’s property in emergency situations.
A tough 6061 aluminum barrier prevents the sharp tip of the blade from being forced into the cap during an impact.
Picture: Silicone cap disected
The tempered glass of a car window does not stand a chance against the Cizor.
Colors and Accessories
Both sizes of the Cizor are available in a natural grey finish, as well as a black finish. Through a vapor depositing technique, a thin layer of deep black aluminum titanium nitride is applied before the final bevel is cut. This coating is known for its extreme resistance to heat and friction, but also creates a nice contrast between the polished edge and the black shaft.
The small and the large Cizor both come with a 6061 aluminum desk stand, anodized in red, black, blue or natural. The design of the stand is very utilitarian, yet still mimics the exact angles of the back of the Cizor knife itself.
Each knife and its accessories come packaged in a custom zippered hard case. The exterior is made from robust 1680D ballistic cordura nylon. A removable EVA foam insert keeps the knife securely in place during transport.
For more information about the Cizor, its proper use and limitations, please see the instruction manual.
