Martinez Albainox Knife Green Cord, Satin 3Cr13Mov (31780)
- 31780 Green Cord, Satin 3Cr13MoV - tactical knife of full tang construction, with a spear point blade and a handle wrapped in green paracord. A practical EDC and throwing training tool, it comes with a nylon sheath.

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.
Martinez Albainox 31780 Green Cord, Satin is a versatile outdoor-training knife that combines rugged construction with a minimalist design. Made entirely of 3Cr13MoV stainless steel , it offers good corrosion resistance, ease of sharpening and durability in field conditions. Its simple form and full tang construction make it a reliable tool for both throwing lessons and light EDC work. Blade's drop point blade with satin finish performs well in precise and dynamic tasks, offering confident cutting guidance and resistance to damage. The Handle has been wrapped with green paracord, which provides a secure grip even in wet conditions, while it can also serve as an emergency utility cord. The model is equipped with a practical nylon sheath with Velcro for secure attachment to a belt or equipment. The 31780 knife is an excellent choice for those beginning their training with throwing knives and those who appreciate functionality, simplicity and resistance to field conditions in everyday use.
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 - designed for universal use - from EDC tasks to throwing training. The drop point profile provides adequate penetration and a long cutting line, which translates into efficiency for both precision and more forceful actions. Made of 3Cr13MoV steel , the Blade offers satisfactory corrosion resistance and ease of sharpening, even in field conditions. The flat grind used facilitates smooth cutting of soft materials, while the satin finish gives the surface a slightly matte sheen and reduces the visibility of scratches. The lack of separate grips enhances durability, and the integrated design allows for better force transfer to the blade during throwing. The knife is light enough for comfortable carrying, yet sturdy enough for everyday and outdoor tasks.
Handle - formed as an integral part of the full tang steel construction , which guarantees its rigidity and strength during dynamic actions. To improve ergonomics and grip, the handle is wrapped with green paracord, creating a layer that improves grip in various conditions - including wet or dirty. The braided cord enhances comfort and can be emergency deployed as a spare section of utility cord. At the end of the Handle there is a through hole with a rope, allowing you to easily attach the knife to your equipment or wrist. The raw, stripped-down design promotes balance and precise handling, making this model ideal for those who value simplicity, durability and practicality. The included nylon sheath allows for convenient, secure carrying and quick access to the tool in the field.
Technical data:
Product number: 31780
Name: Green Cord, Satin
Overall length: 200.0 mm / 7.87"
Blade length: 105.0 mm / 4.13"
Blade thickness: 2.9 mm / 0.11"
Handle length: 95.0 mm / 3.74"
Handle thickness: n.d.
Weight: 87.8 g / 3.1 oz
Blade material: 3Cr13MoV
Blade hardness: n.d.
Blade grind: Flat
Blade finish: Satin
Handle material: 3Cr13MoV / Paracord
Handle finish color / finish color: Green
Sheath (holster): Nylon
Additional accessories: None
Designer: Martinez Albainox
Brand name: Martinez Albainox
Manufacturer: Martinez Albainox S.L.U., Spain
Country of origin: n.d.
Developed by: the Sharg® company