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The carbon blade No4 is our smallest model and does not feature the Virobloc safety ring. This tiny knife is commonly used to perform small tasks such as opening letters or cutting papers. This is a very small knife; please review its size before considering it.Dimensions
4.68" x 0.40" x 0.40"
Blade Material
XC90 Carbon Steel
Blade Length
2 inches
Handle Material
Varnished Beech Wood
Traditional Folding Knife
The blade that started it all
VIEW ALL SIZES
| No.02 | No.03 | No.04 | No.05 | No.06 | No.07 | No.08 | No.09 | No.10 | No.12 |
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| Does Not Lock | Does Not Lock | Does Not Lock | Does Not Lock | Virobloc Locking Ring | Virobloc Locking Ring | Virobloc Locking Ring | Virobloc Locking Ring | Virobloc Locking Ring | Virobloc Locking Ring |
| Blade Material | Blade Material | Blade Material | Blade Material | Blade Material | Blade Material | Blade Material | Blade Material | Blade Material | Blade Material |
| Blade Length | Blade Length | Blade Length | Blade Length | Blade Length | Blade Length | Blade Length | Blade Length | Blade Length | Blade Length |
| Overall Length | Overall Length | Overall Length | Overall Length | Overall Length | Overall Length | Overall Length | Overall Length | Overall Length | Overall Length |
| Weight | Weight | Weight | Weight | Weight | Weight | Weight | Weight | Weight | Weight |
| Made in France | Made in France | Made in France | Made in France | Made in France | Made in France | Made in France | Made in France | Made in France | Made in France |
Our carbon steel is extremely hard, thereby guaranteeing excellent cutting quality, good wear resistance and easy sharpening. Carbon can corrode easily. We advise you to avoid damp locations and to wipe and grease the blade after use.
Our patented locking mechanism developed in 1955 that keeps the blade securely opened, or closed.
Avoid leaving your carbon blade knife in damp environments for too long. Place a little food grade mineral oil on all metal parts regularly. Dry the blade using a dry cloth after each use. Opinel carbon knife blades are made using steels with a high carbon content, which is what makes it possible to achieve the excellent hardness after heat treatment, guaranteeing the strength of the cutting edge, resistance to wear and easy of sharpening. The hardness obtained after heat treatment are theoretically slightly greater in steels that do not contain chrome. The cutting strength is therefore better with a carbon steel knife and sharpening is much easier than a stainless steel blades which contain chrome. However, carbon has a low resistance to corrosion caused by moisture, which means that certain precautionary measures are necessary when using and storing a carbon knives: we recommend that you avoid damp environments and that you dry the blade after each use. We strongly suggest you take a look at our F.A.Q where most common questions about Opinel knives are answered.
