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Extrema Ratio

Extrema Ratio embodies excellence in tactical equipment, combining innovation, quality, and performance. Globally recognized, this Italian brand offers robust and reliable knives, designed for the most demanding missions. Discover our selection on Welkit.

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  • Extrema Ratio

    Fixed blade knife FULCRUM C

    (5)
    259.00 €
    Very low stock (1 unit)
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  • Extrema Ratio

    Fixed blade knife ASFK

    (9)
    399.00 €
    Very low stock (1 unit)
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  • Extrema Ratio

    RAO pocket knife

    (6)
    389.00 €
    Very low stock (1 unit)
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  • Extrema Ratio

    Fixed blade knife CONTACT C

    (6)
    From 219.00 €
    +1
    In stock
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  • FRENCH DAYS
    New arrival

    Extrema Ratio

    Folding Knife BD4 CONTRACTOR

    From 161.21 € 209.00 € -22%
    Low stock (2 units)
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  • Extrema Ratio

    BF2 CT Pocket Knife

    (10)
    209.00 €
    Low stock (2 units)
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  • Extrema Ratio

    Fixed blade knife MISERICORDIA

    (1)
    199.00 €
    Very low stock (1 unit)
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  • FRENCH DAYS
    New arrival

    Extrema Ratio

    Folding Knife BD2 CONTRACTOR

    From 143.86 € 189.00 € -23%
    Low stock (2 units)
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  • Extrema Ratio

    Fixed blade knife REQUIEM

    (13)
    From 159.00 €
    Low stock (5 units)
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  • FRENCH DAYS

    Extrema Ratio

    Fixed blade knife TASK C

    (11)
    From 160.00 € 219.00 € -26%
    Low stock (4 units)
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  • FRENCH DAYS
    New arrival

    Extrema Ratio

    SELVANS EXPEDITIONS fixed blade knife

    327.18 € 449.00 € -27%
    Low stock (2 units)
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  • FRENCH DAYS
    New arrival

    Extrema Ratio

    BD2 LUCKY Folding Knife

    From 138.84 € 179.00 € -22%
    Low stock (3 units)
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  • FRENCH DAYS
    New arrival

    Extrema Ratio

    Fixed blade knife SILENTE

    385.30 € 529.00 € -27%
    Low stock (2 units)
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  • FRENCH DAYS
    New arrival

    Extrema Ratio

    Fixed Blade Knife SETHLANS

    From 328.56 € 449.00 € -26%
    Low stock (3 units)
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  • FRENCH DAYS
    New arrival

    Extrema Ratio

    Fixed Blade Knife SETHLANS EXPEDITIONS

    (1)
    323.95 € 419.00 € -22%
    Low stock (2 units)
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  • FRENCH DAYS
    New arrival

    Extrema Ratio

    Fixed Blade Knife KREIOS EXPEDITIONS

    366.38 € 469.00 € -21%
    Low stock (2 units)
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  • FRENCH DAYS
    New arrival

    Extrema Ratio

    Fixed Blade Knife DMP

    (4)
    From 190.86 € 264.00 € -27%
    +1
    In stock
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  • New arrival

    Extrema Ratio

    Fixed Blade Knife FULCRUM C FH

    249.00 €
    Low stock (2 units)
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  • FRENCH DAYS

    Extrema Ratio

    Folding knife T911

    226.73 € 309.00 € -26%
    Low stock (3 units)
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  • FRENCH DAYS

    Extrema Ratio

    BDØ R Pocket Knife

    (22)
    76.56 € 94.00 € -18%
    +1
    In stock
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  • Extrema Ratio

    Fixed blade knife SCOUT 2

    (6)
    219.00 €
    Low stock (2 units)
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  • Extrema Ratio

    Fixed blade knife MAMBA

    (15)
    From 159.00 €
    In stock
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  • FRENCH DAYS

    Extrema Ratio

    Fixed blade knife FULCRUM S

    (7)
    From 254.71 € 349.00 € -27%
    Low stock (5 units)
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    FRENCH DAYS

    Extrema Ratio

    T-RAZOR Pocket Knife

    (7)
    184.58 € 239.00 € -22%
    Low stock (3 units)
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  • Extrema Ratio

    Fixed blade knife NK2

    (3)
    149.00 €
    Very low stock (1 unit)
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  • Extrema Ratio

    Fixed blade knife COL MOSHIN COMPACT

    (5)
    269.00 €
    Low stock (2 units)
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  • Extrema Ratio

    NIGHTMARE Pocket Knife

    (8)
    From 259.00 €
    Low stock (2 units)
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  • Extrema Ratio

    Fixed blade knife T4000 C

    (5)
    249.00 €
    Low stock (2 units)
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  • Extrema Ratio

    Fixed blade knife ULTRAMARINE WITH HANDLE

    (4)
    629.00 €
    Low stock (2 units)
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  • Extrema Ratio

    Pocket Knife RATION BF3 DARK TALON

    (10)
    209.00 €
    Very low stock (1 unit)
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  • Extrema Ratio

    BF2 CD Pocket Knife

    (10)
    209.00 €
    Low stock (2 units)
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  • Extrema Ratio

    Pocket Knife BF1 CD

    (7)
    169.00 €
    Low stock (2 units)
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  • Extrema Ratio

    Fixed blade knife NK3

    (7)
    159.00 €
    Very low stock (1 unit)
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  • Extrema Ratio

    Fixed blade knife FULCRUM C TESTUDO

    (6)
    249.00 €
    Low stock (2 units)
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  • FRENCH DAYS

    Extrema Ratio

    GLAUCA B1 GIGN Pocket Knife

    (11)
    396.06 € 549.00 € -27%
    Very low stock (1 unit)
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  • Extrema Ratio

    Fixed blade knife COL MOSCHIN COBALT

    (3)
    389.00 €
    Low stock (2 units)
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  • Extrema Ratio

    Fixed blade knife MOSCHIN

    (5)
    419.00 €
    Very low stock (1 unit)
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  • Extrema Ratio

    Pocket Knife BF1 CD WAREFARE

    (7)
    199.00 €
    Low stock (2 units)
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  • Extrema Ratio

    BF2 CD WAREFARE Pocket Knife

    (3)
    219.00 €
    Low stock (2 units)
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  • Extrema Ratio

    Fixed blade knife PUGIO

    (8)
    309.00 €
    Backordered
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  • FRENCH DAYS
    New arrival

    Extrema Ratio

    Folding Knife BD4 LUCKY

    From 154.26 € 199.00 € -22%
    Backordered
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  • New arrival

    Extrema Ratio

    Fixed blade knife SELVANS

    (2)
    449.00 €
    Backordered
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  • New arrival

    Extrema Ratio

    Fixed blade knife SATRE EXPEDITIONS

    169.00 €
    Backordered
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  • New arrival

    Extrema Ratio

    Fixed Blade Knife KREIOS

    469.00 €
    Backordered
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  • Extrema Ratio

    Pocket Knife MFO D

    (1)
    329.00 €
    Backordered
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  • Extrema Ratio

    BF2 R CT Pocket Knife

    (4)
    From 189.00 €
    Backordered
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  • Extrema Ratio

    BF2 R CD Pocket Knife

    (13)
    189.00 €
    Backordered
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  • Extrema Ratio

    BF1 CT Pocket Knife

    (5)
    169.00 €
    Backordered
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History and Evolution of the Extrema Ratio Brand

The Extrema Ratio adventure began in Italy in the mid-90s, with the ambition to create exceptional tactical knives. The brand quickly established itself as a reference in the sector thanks to its constant innovations and commitment to quality. Each Extrema Ratio knife is the result of thorough research and meticulous development, aimed at providing reliable and effective tools for the most demanding operations. Over the years, Extrema Ratio has evolved while remaining true to its founding principles, thus consolidating its position as a leader in the field of tactical equipment.

Quality at the Heart of Design

The Extrema Ratio brand is synonymous with uncompromising quality. Each Extrema Ratio knife is designed using high-quality materials, selected for their durability and performance in extreme conditions. The precision of the machining, combined with rigorous testing, ensures that each product meets the highest standards in the industry. Whether for a specific operation or for daily use in challenging environments, Extrema Ratio knives offer unmatched reliability.

Innovation and Performance

Innovation is at the heart of Extrema Ratio's strategy. The brand continually invests in research and development to design knives that exceed professionals' expectations. From ergonomic design to the integration of cutting-edge technologies, every aspect of the knives is designed to maximize performance and safety. Extrema Ratio users thus benefit from tactical tools adapted to modern challenges, combining power, precision, and versatility.

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