Extrema Ratio Knives

Welcome to Extrema Ratio Knives, a renowned Italy-based knife-making brand established in 1997 in Prato. Extrema Ratio is celebrated for its exceptional craftsmanship in producing high-performance combat, military, kitchen, hunting, and tactical knives. Designed with the rigorous demands of the Italian and foreign armed forces in mind, these knives are built to withstand the toughest conditions. Extrema Ratio’s dedication to quality and precision has cemented its reputation as a leading knife manufacturer.

Manufacturer Product Groups (MPGs)

Extrema Ratio Fixed Blade Knives: This collection includes knives suitable for heavy-duty tasks, hunting, combat, and survival. They feature high-edge holding blades and durable handles made from materials like forprene, ensuring a reliable performance in various outdoor activities.

Extrema Ratio Folding Pocket Knives: These versatile knives are designed for everyday carry (EDC) and tactical use. They feature robust blades made from N690 stainless cobalt steel and ergonomic handles, providing a secure grip and excellent functionality.

Extrema Ratio Machetes: Known for their broad blades, Extrema Ratio machetes are perfect for field chores, combat, and outdoor tasks. They feature black finish N690 stainless cobalt steel blades and forprene handles for superior durability and edge retention.

Extrema Ratio Linerlock Pocket Knives: This category offers a variety of folding knives with partially serrated and standard edge blades. The anodized aluminum handles provide high resilience, making these knives ideal for EDC and tactical situations.

Extrema Ratio Neck Knives: Compact and versatile, these fixed blade knives are great for EDC endeavors. They feature one-piece Bohler N690 stainless blades and come with a molded Kydex sheath for secure carry.

Extrema Ratio Ermes Knives: These knives are known for their tactical utility and durability. They feature sturdy construction and ergonomic handles, making them suitable for various cutting tasks in the field.

Extrema Ratio Frame Rock Knives: Built for rugged use, these knives feature durable blades and handles designed for a secure grip. They are ideal for heavy-duty tasks and outdoor adventures.

Extrema Ratio Herring Knives: These knives are designed for tactical and combat use, featuring robust blades and ergonomic handles for better control and performance.

Extrema Ratio K-Talon Knives: The K-Talon series offers high-performance knives with precision-engineered blades and handles, suitable for a range of outdoor and tactical applications.

Extrema Ratio RAO Knife Series: These folding knives are known for their durable construction and versatile functionality. They feature strong blades and secure locking mechanisms, making them reliable for various tasks.

Extrema Ratio Satre Neck Knives: Designed for easy carry and quick access, these neck knives are compact and durable, featuring high-quality blades and ergonomic handles.

Extrema Ratio Selvans Knives: The Selvans series includes heavy-duty knives designed for survival and outdoor use. They feature robust blades and handles for reliable performance in challenging conditions.

Extrema Ratio Sethlans Knives: These knives are built for tactical use, featuring strong blades and ergonomic handles for superior control and effectiveness.

Extrema Ratio AMF Knife Series: The AMF series includes tactical knives with durable blades and handles, designed for heavy-duty tasks and outdoor adventures.

Extrema Ratio BD Knife Series: This series features folding knives with spear point blades, suitable for various cutting and piercing tasks. They are designed for durability and ease of use.

Extrema Ratio BF Knife Series: The BF series includes linerlock pocket knives with robust blades and ergonomic handles, making them ideal for EDC and outdoor use.

Extrema Ratio Contact Knife Series: These fixed blade knives are designed for tactical and outdoor use, featuring durable blades and secure grips for reliable performance.

Extrema Ratio Defender Knife Series: The Defender series includes tactical knives with strong blades and ergonomic handles, suitable for combat and heavy-duty tasks.

Extrema Ratio Desert Warfare Knife Series: These knives are designed for desert operations, featuring durable blades and handles that can withstand harsh conditions.

Extrema Ratio Doberman IV Knife Series: The Doberman IV series includes fixed blade knives with strong blades and ergonomic handles, designed for hunting and outdoor use.

Extrema Ratio Fulcrum Knife Series: Known for their tough construction, Fulcrum knives are ideal for camping, hunting, and survival tasks. They feature durable blades and ergonomic handles for superior performance.

Extrema Ratio Glauca Knife Series: This series features folding pocket knives with textured aluminum handles for a secure grip, even in challenging conditions. Equipped with partially serrated Bohler N690 stainless blades, these knives include a glass breaker tip and pocket clip, making them ideal for tactical operations.

Extrema Ratio Karambit Knives: The Karambit series includes folding pocket knives with a curved blade design, popular among law enforcement and martial artists. These knives feature standard edge blades, anticorodal anodized aluminum handles, and additional tools like belt cutters and glass breakers.

Extrema Ratio Mamba Knife Series: Known for its heavy-duty performance, the Mamba series features fixed blade knives with stonewash finish Bohler N690 stainless tanto blades. Ideal for slicing, butchering, and chopping, these knives come with forprene handles for a performance grip.

Extrema Ratio MF Knife Series: The MF series includes tactical folders with durable drop point blades made from N690 stainless cobalt steel. Featuring black anodized anticorodal aluminum alloy handles, these knives are built for heavy-duty use and include a glass breaker tip.

Extrema Ratio Misericordia Knives: This series offers high-performing knives with robust Bohler N690 stainless blades and ergonomic handles, making them suitable for various cutting tasks in tactical situations.

Extrema Ratio MK2.1 Knife Series: Designed for military use, the MK2.1 series features fixed blade knives with N690 Cobalt reinforced stainless blades. These knives have nylon handles and stainless guards for optimal control and durability.

Extrema Ratio Moschin Knife Series: The Moschin series includes partially serrated N690 stainless cobalt steel blades with Testudo finish. These full-tang knives feature Forprene handles and tactical kits with leg belts for versatile use.

Extrema Ratio Nightmare Knife Series: Known for their linerlock design, the Nightmare series features anticorodal anodized handles and Bohler N690 stainless blades, suitable for survival situations with integrated glass breakers and belt cutters.

Extrema Ratio Nimbus Knives: Featuring high-performance blades and ergonomic handles, the Nimbus series is ideal for tactical and outdoor use.

Extrema Ratio NK1 Knife Series: The NK1 series offers strong fixed blade knives designed for self-defense and general outdoor tasks. These knives come with stonewashed blades and molded Kydex neck sheaths.

Extrema Ratio NK3 Knife Series: Designed for adventure experts and survivalists, the NK3 series includes single-piece Bohler N690 stainless blades with MOLLE compatible Kydex sheaths for safe carry.

Extrema Ratio Ontos Knives: Featuring durable blades and ergonomic handles, the Ontos series is built for heavy-duty outdoor tasks.

Extrema Ratio Panthera Knife Series: The Panthera series includes linerlock knives with Wharncliffe blades made from Mil-Spec coated Bohler N690 stainless. These knives are designed for general cutting tasks and include glass breakers for emergencies.

Extrema Ratio Primo Knives: Featuring robust construction, the Primo series offers reliable performance for outdoor and tactical use.

Extrema Ratio Pugio Knife Series: The Pugio series includes tactical knives with classic designs, featuring Bohler N690 stainless blades and forprene handles for secure grip.

Extrema Ratio RAO Knife Series: The RAO series covers folding knives with highly durable stainless cobalt steel blades and aluminum alloy handles. These knives feature an extra-safe locking device and MOLLE compatible sheaths.

Extrema Ratio Requiem Knife Series: The Requiem series offers multi-purpose fixed blade knives with stiletto-style blades and forprene handles, ideal for various outdoor tasks.

Extrema Ratio Resolza Knife Series: Featuring anodized aluminum handles and Bohler N690 stainless blades, the Resolza series is perfect for piercing, stabbing, and general cutting jobs.

Extrema Ratio Scout Knife Series: The Scout series includes fixed blade knives with spear-point blades and forprene handles, designed for various outdoor and survival tasks.

Extrema Ratio Selvan Knife Series: The Selvan series features heavier blades with MIL-C-13924 black coating and forprene handles, suitable for a range of outdoor tasks.

Extrema Ratio Shrapnel Knife Series: The Shrapnel series includes fixed blade knives with Testudo finish and forprene handles, ideal for adventure enthusiasts and campers.

Extrema Ratio Silente Knives: Featuring robust blades and ergonomic handles, the Silente series is designed for tactical and outdoor use.

Extrema Ratio Suppressor Knives: Known for their exceptional performance, the Suppressor series includes knives with durable blades and ergonomic handles.

Extrema Ratio T Razor Knife Series: The T Razor series features folding pocket knives with straight razor-style blades, suitable for EDC and outdoor pursuits.

Extrema Ratio Task Knife Series: The Task series includes fixed blade knives with modified tanto blades and integral finger guards, ideal for survival experts and outdoor enthusiasts.

Extrema Ratio TK Multi-Tool Series: The TK series offers multi-purpose tools designed for EDC users and outdoorsy people, featuring corrosion-resistant stainless steel construction and a variety of functions.

Extrema Ratio Ultramarine Knife Series: The Ultramarine Knife series includes knives specifically designed for underwater and maritime use. These knives feature robust, anti-corrosive materials and ergonomic designs to ensure optimal performance and reliability in wet conditions. With cutting-edge technology and superior craftsmanship, these knives are essential for divers and maritime professionals.

Choosing Extrema Ratio Knives means investing in high-quality, reliable tools designed to meet the most demanding conditions. Our knives are crafted with precision and durability, ensuring they perform exceptionally well in tactical, combat, and outdoor situations. Whether you are a military professional, survivalist, or outdoor enthusiast, Extrema Ratio Knives offer the reliability and performance you need. Trust in the excellence and innovation that define Extrema Ratio, and equip yourself with the best tools for any challenge.