Martinez Albainox Japanese Tanto Knife Black Rubber, Satin 3Cr13MoV (31618)
- Tactical Tanto Black Rubber, Satin – tactical knife with a fixed tanto blade, made of 3Cr13MoV steel, with a rubber handle and satin finish. Durable, functional and ready for action in all terrain conditions.

This product is intended for use only by adults with knowledge and experience in handling sharp cutting tools. Improper use of the knife can result in serious injuries. The blade is extremely sharp and can easily cut through skin and tissue; therefore, extra caution should always be exercised while cutting, and hands should be kept away from the cutting edge. To prevent the knife from slipping, it is recommended to cut on a stable, non-slip surface and avoid excessive force, which may cause uncontrolled blade movement.
Leaving the knife on the edge of a table, countertop, or in easily accessible places—especially where children are present—poses a significant safety risk. The knife should always be properly secured after use, ideally by placing it on a stable surface or storing it in designated knife blocks, protective sheaths, or magnetic strips. The knife should never be used for tasks it is not designed for, such as opening cans or prying objects, as this can damage the tool and lead to dangerous accidents.
A dull blade increases the risk of injury, as it requires more force and is more likely to slip from the material being cut. Therefore, it is essential to sharpen the knife regularly to maintain optimal sharpness. Additionally, proper cleaning and drying of the knife are necessary to prevent corrosion and bacterial growth. Periodic inspection of the handle and blade is recommended to check for cracks, chips, or looseness. If any damage is detected, the knife should be repaired or replaced immediately.
When using the knife, focus solely on the task at hand—avoid talking on the phone, watching television, or other distractions while cutting. Ensure proper lighting in the workspace for better visibility and control. Please note that some countries or regions have laws restricting the ownership and carrying of knives. Before purchasing or using this knife, verify that its use is legal in your location according to applicable regulations.
Following these safety guidelines will help ensure safe and effective knife use, minimizing the risk of accidents and extending the lifespan of the tool.
Tactical Tanto Black Rubber, Satin is a rugged field knife designed for heavy use in demanding conditions. Thanks to the use of the classic Blade profile American tanto, the whole thing gains high structural strength, piercing efficiency and versatility of operation - both in the survival environment and in typical camp tasks. The blade material, 3Cr13MoV stainless steel, offers good corrosion resistance and ease of sharpening, making the knife a practical tool for everyday use in the field. The satin finish gives the blade a subdued look and reduces light reflections, supporting use in operational conditions. A textured rubber handle provides a stable grip even in mud and rain, while an integrated steel sheath and a solid bolster in the back enhance safety and functionality. The whole is complemented by a classic imitation leather sheath with a belt loop for easy transport. The 31618 is a reliable tool for those who want durability, simplicity and tactical effectiveness.
3Cr13MoV is a martensitic chromium steel that has been enriched with molybdenum (Mo) and vanadium (V) to improve its performance properties. The typical chemical composition includes about 0.26-0.35% carbon (C), 12.5-14.5% chromium (Cr), 0.4-0.6% molybdenum (Mo) and 0.1-0.2% vanadium (V). The addition of chromium provides corrosion resistance, while molybdenum increases hardenability, high-temperature strength and resistance to pitting corrosion. Vanadium contributes to the hardness, wear resistance and fine grain structure of the steel. 3Cr13MoV is used for knives (often found in folding knives and hunting knives), medical tools and other applications where a good combination of corrosion resistance, hardness and strength is required. It is an improved version of 3Cr13 steel, offering better sharpness retention and overall durability.
Blade - with an American tanto profile is made of corrosion-resistant 3Cr13MoV stainless steel, which provides good durability and ease of sharpening. The distinctive geometry with a pronounced kink in the cutting edge allows for effective piercing, while offering high resistance to lateral stress. A full flat grind is used , which improves cutting properties and allows the blade to be easily guided through the material. The satin finish reduces light reflections and masks minor wear marks. This Blade is designed for heavy use - functional, simple and durable.
Handle - made of rubberized plastic is designed for maximum grip and weather resistance. Its texture and profiling promote grip stability, even with wet hands or when working with gloves. The front part features a steel guard, which increases the user's safety when working with great force. The rear part is finished with a metal pin, which can act as an emergency nailer. The whole is characterized by high mechanical resistance and comfort of use in varied field conditions. It comes with a sheath made of imitation leather with a belt attachment for convenient carrying. Handle of model 31618 is a combination of durability, ergonomics and functionality - ready for any challenge.
Technical data:
Product number: 31618
Name: Tactical Tanto Black Rubber, Satin
Overall length: 328.0 mm / 12.9"
Blade length: 190.0 mm / 7.48"
Blade thickness: 4.46 mm / 0.176"
Handle length: 138.0 mm / 5.43"
Handle thickness: n.d.
Weight: 309.5 g / 10.9 oz
Blade material: 3Cr13MoV
Blade hardness: n.d.
Blade grind: Flat
Blade finish: Satin
Handle material: Rubber
Handle finish color/finish color: Black
Sheath (holster): Ecological leather
Additional accessories: None
Designer: Martinez Albainox
Brand name: Martinez Albainox
Manufacturer: Martinez Albainox S.L.U., Spain
Country of origin: Spain
Developed by: the Sharg® company