DISCOVER MORE
ACCESSORIES
The Extrema Ratio Accessories category gathers original spare parts and accessories designed to maintain, restore, and prolong the efficiency of tools over time. Every accessory is created to integrate perfectly with the product, respecting its geometries, materials, and function. No forced adaptations. No generic solutions.
Designed for real-world use
A used knife works. A tool that works wears out. Extrema Ratio accessories exist to allow the tool to continue doing what it was designed for, without compromising performance, safety, or reliability.
Subcategories Survival Kits & Tools
Compact support systems designed for self-sufficiency, emergencies, and managing the unexpected. Essential, always ready when needed.
Sharpeners
Practical solutions for edge restoration. To maintain blade effectiveness over time, even far from dedicated equipment.
Sheaths & Handles
Original components to replace, update, or customize. Same compatibility, same quality.
Closing the circle
Choosing an original accessory means recognizing the value of the tool and taking care of it over time. Not to preserve it, but to keep using it.
Extrema Ratio Accessories:
taking care of what takes care of you.
Continuity
Original spare parts and accessories designed to keep the tool efficient over time, without altering performance, safety, or behavior.
Compatibility
Every component is born to integrate perfectly with the Extrema Ratio product: same geometries, same materials, no adapted solutions.
Function
Accessories designed for real-world use: sharpening, carrying, replacing, maintaining. Only what is necessary to continue using the tool correctly.