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Extrema Ratio

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9 Items

  1. ExtremaRatio - Ant Black Knife - N690 - Folding Knife

    The Ant is the most compact among Extrema Ratio's folding knives. Despite its small size, this model features an extremely sturdy, durable, and reliable structure.

    The handle is made of two different elements: the cheek piece crafted from anodized anticorodal aluminum and the hardened steel frame which also serves as the blade lock (Frame Lock System). This mechanism involves a part of the frame bending inward to firmly secure the blade in the open position, enhancing the user's safety during the knife's use.

    The tang features a hole for the insertion of a lanyard, and on the right side of the handle, there is a steel clip that allows for concealed carry in the pocket.

    The Ant Black version utilizes Böhler N690, hardened to 58 HRC for the best balance between edge retention and toughness, a type of steel used by Extrema Ratio for most of its knives.

    The blade is sheep foot-shaped and has a small hole on the top part to facilitate opening. Its particular structure, with a straight edge, allows the user to comfortably rest their fingers on the back of the knife and use it with ease.

    Type of production: industrial
    Blade: in stainless steel N690 58 HRC
    Blade production: Italy
    Handle: anodized anticorodal aluminum and steel
    Blade length: 70mm.
    Blade thickness: 2.2mm.
    Closed length: 55mm.
    Total length: 127mm.
    Balancing: -
    Weight: 42g.
    Closure: Frame Lock
    Clip: removable stainless steel
    Sheath: -
    Notes:

    ER-ANT-B-B
    €104.92
    Only 2 left
    Only 2 left
  2. ExtremaRatio - Ant Black Stone Washed Knife - M390 - Folding Knife

    The Ant is the most compact among Extrema Ratio's folding knives. Despite its small size, this model features an extremely sturdy, durable, and reliable structure.

    The handle is made of two different elements: the cheek piece crafted from anodized anticorodal aluminum and the hardened steel frame which also serves as the blade lock (Frame Lock System). This mechanism involves a part of the frame bending inward to firmly secure the blade in the open position, enhancing the user's safety during the knife's use.

    The tang features a hole for the insertion of a lanyard, and on the right side of the handle, there is a steel clip that allows for concealed carry in the pocket.

    The Ant is available in 4 versions with two different types of steel, both provided by Böhler, an Austrian company with which Extrema Ratio has been collaborating for over 20 years, using its highly esteemed materials for the production of its blades.

    For the Stone Washed M390 version, Extrema Ratio uses Böhler M390 steel, thermally treated to 61 HRC, which, thanks to a powder metallurgy production process, ensures cutting effectiveness, wear resistance, and oxidation resistance over time.

    The blade is sheep foot-shaped and has a small hole on the top part to facilitate opening. Its particular structure, with a straight edge, allows the user to comfortably rest their fingers on the back of the knife and use it with ease.

    Type of production: industrial
    Blade: in stainless steel M390 61HRC
    Blade production: Italy
    Handle: anodized anticorodal aluminum and steel
    Blade length: 70mm.
    Blade thickness: 2.2mm.
    Closed length: 55mm.
    Total length: 127mm.
    Balancing: -
    Weight: 42g.
    Closure: Frame Lock
    Clip: removable stainless steel
    Sheath: -
    Notes:

    ER-ANT-B-M
    €108.20
    Only 1 left
    Only 1 left
  3. ExtremaRatio - MF0D - Black - Lockable knife

    Intended use: Tactical

    Type of production: Industrial
    Blade production: Italy
    Blade: Stainless steel N690Co 58HRC
    Blade Treatment: Testudo
    Manicure: Anticorodal
    Blade Length: 70mm.
    Blade thickness: 4mm.
    Closed length: 110mm.
    Total length: 174mm.
    Closure thickness: 23mm. (15mm without clips)
    Balance: -
    Weight: 138g.
    Closure: Liner Lock
    Clip: Stainless Steel
    Sheath: -
    Packing: black carton box with Extrema Ratio logos
    Notes: -

    4350-0
    €241.80
    Only 99 left
    Only 99 left
  4. ExtremaRatio - Ant Rescue Red Stone Washed Knife - M390 - Folding Knife

    The Ant is the most compact among Extrema Ratio's folding knives. Despite its small size, this model features an extremely sturdy, durable, and reliable structure.

    The Ant Rescue, unlike other versions, has a cheek piece in red coloration that allows the operator to more easily locate the knife in case of a fall. This version is equipped with a specific serration that allows cutting ropes and even high-tensile aramid materials. Moreover, this model has a tapered tang that serves as an emergency screwdriver. The Ant Rescue has been developed according to the needs expressed by the "Italian Army Alpine Troops School".

    The handle is made of two different elements: the cheek piece crafted from anodized anticorodal aluminum and the hardened steel frame which also serves as the blade lock (Frame Lock System). This mechanism involves a part of the frame bending inward to firmly secure the blade in the open position, enhancing the user's safety during the knife's use.

    The tang features a hole for the insertion of a lanyard, and on the right side of the handle, there is a steel clip that allows for concealed carry in the pocket.

    The Ant is available in 4 versions with two different types of steel, both provided by Böhler, an Austrian company with which Extrema Ratio has been collaborating for over 20 years, using its highly esteemed materials for the production of its blades.

    For the Stone Washed M390 version, Extrema Ratio uses Böhler M390 steel, thermally treated to 61 HRC, which, thanks to a powder metallurgy production process, ensures cutting effectiveness, wear resistance, and oxidation resistance over time.

    The blade is sheep foot-shaped and has a small hole on the top part to facilitate opening. Its particular structure, with a straight edge, allows the user to comfortably rest their fingers on the back of the knife and use it with ease.

    Type of production: industrial
    Blade: in partially serrated stainless steel M390 61HRC
    Blade production: Italy
    Handle: anodized anticorodal aluminum and steel
    Blade length: 70mm.
    Blade thickness: 2.2mm.
    Closed length: 55mm.
    Total length: 127mm.
    Balancing: -
    Weight: 42g.
    Closure: Frame Lock
    Clip: removable stainless steel
    Sheath: -
    Notes:

    ER-ANT-R-M
    €112.30
    Only 0 left
    Only 0 left
    Out of stock
  5. ExtremaRatio - Task Desert Warfare - Tactical Knife

    The Task series has been designed for all everyday cutting jobs.

    The partially symmetrical blade with flat edge on both sides. The hollow part of the blade after the guard, which separates the sharp part from the handle, has been made to house the index finger during use, creating a grip point near the sharp part for better control while using the knife.

    This feature, together with the support grip on the back of the knife, allows a better grip while avoiding the slipping of the hand on the blade. This allows you to carry out most cutting jobs with higher pressure.

     

    Intended use: Tactical

    Type of production: Industrial
    Country of production: Italy
    Blade: N690Co stainless steel
    Blade finish: Desert Warfare (Burnished with laser engraving)
    Handle: Forprene
    Blade length: 160mm.
    Blade thickness: 6.3mm.
    Total length: 290mm.
    Weight: 275g.
    Sheath: Cordura
    Packaging: Cardboard box with Extrema Ratio logos
    Note: -

    ER-TASK-DW
    €296.72
    Only -99 left
    Only -99 left
    Rating:
    100%
    5
    Out of stock
  6. ExtremaRatio - Kato Desert Warfare 15cm. - Santoku Knife



    TACTICAL KNIVES MEET THE KITCHEN!
    Extrema Ratio is delighted to apply the strict military standards to a range of professional kitchen knives.

    The steel blade is the proven BOHLER N690, a steel enriched with chrome, vanadium, molybdenum and cobalt, hardened to the hardness of 58HRC. The handle is made of Forprene, an elastomer that is in the "NATO standard" for resistance to extreme conditions, and is completely removable from the blade; this makes possible a thorough cleaning and maintenance of the knife.

    Each knife comes with its own sheath, also of military origin, which does not take into account the rules of hygiene but ensures safe transport dell'affilatissima blade and protection from shocks that could reduce efficiency. We recommend to use it only for the transport and in the event of long periods of inactivity.

    Intended use: vegetable / meat / fish

    Type of production: Industrial
    Production Lama: Italy
    Blade: stainless steel hardened 58HRC N690Co
    Treatment Lama: Laser Desert Camo
    Handle: Forprene
    Blade length: 157mm.
    Blade thickness: 4mm.
    Overall length: 287mm.
    Weight: 279g.
    Sheath: Cordura, compatible M.O.L.L.E.
    Packaging: Cardboard box with logos Extrema Ratio
    Note: Can also be used as a knife or sports collectibles

    12324
    €193.44
    Out of stock
  7. ExtremaRatio - Kato 15cm. - Santoku Knife



    TACTICAL KNIVES MEET THE KITCHEN!
    Extrema Ratio is delighted to apply the strict military standards to a range of professional kitchen knives.

    The steel blade is the proven BOHLER N690, a steel enriched with chrome, vanadium, molybdenum and cobalt, hardened to the hardness of 58HRC. The handle is made of Forprene, an elastomer that is in the "NATO standard" for resistance to extreme conditions, and is completely removable from the blade; this makes possible a thorough cleaning and maintenance of the knife.

    Each knife comes with its own sheath, also of military origin, which does not take into account the rules of hygiene but ensures safe transport dell'affilatissima blade and protection from shocks that could reduce efficiency. We recommend to use it only for the transport and in the event of long periods of inactivity.

    Intended use: vegetable / meat / fish

    Type of production: Industrial
    Production Lama: Italy
    Blade: stainless steel hardened 58HRC N690Co
    Treatment Lama: Glazing
    Handle: Forprene
    Blade length: 157mm.
    Blade thickness: 4mm.
    Overall length: 287mm.
    Weight: 279g.
    Sheath: black leather
    Packaging: Cardboard box with logos Extrema Ratio
    Note: Can also be used as a knife or sports collectibles

    12323
    €293.44
    Rating:
    87%
    4.4
    Out of stock
  8. ExtremaRatio - Task C Testudo knife - Knife

    The Task series has been designed for all everyday cutting jobs.

    The blade is partially symmetrical with a flat edge on both sides. The recessed part of the blade after the guard, which separates the sharpened part from the handle, has been realized by housing the index finger during use, creating a grip point near the sharpened part for a better control during the use of the knife.

    This feature, together with the support grip on the back of the knife, allows a better grip while avoiding the sliding of the hand on the blade. In this way it is possible to carry out most of the cutting work by applying a higher pressure if necessary.

    Intended use: Tactical / Sports

    Type of production: Industrial
    Lama production: Italy
    Blade: N690Co stainless steel
    Blade treatment: Testudo
    Handle: Forprene
    Blade length: 110mm.
    Blade thickness: 6.3mm.
    Length closed: -
    Total length: 212mm.
    Thick when closed: -
    Balancing: -
    Weight: 200g.
    Closing: -
    Clip: -
    Sheath: ABS with Tek-Lok multi-position attachment
    Packaging: Cardboard box with Extrema Ratio logos
    Note: -
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    ER-TAC-BK
    €182.79
    Only 0 left
    Only 0 left
    Rating:
    91%
    4.6
    Out of stock
  9. ExtremaRatio - Task Testudo - knife

    COLTELLO RITIRATO DA COLLEZIONE PRIVATA
    Tipologia: Precedentemente Acquistato
    Condizioni: in condizioni pari al nuovo
    Reperibile in commercio Fuori produzione dal 2020
    Affilatura: Di fabbrica
    Segni su lama: no
    Segni su impugnatura: no
    Scatola: Presente
    Fodero: Presente - Originale
    Manuali, Certificati e Garanzie: Certificato 
    Controllato e Certificato dal nostro laboratorio interno

    La serie Task stata studiata per tutti i lavori di taglio di uso quotidiano.

    La lama parzialmente simmetrica con arrotatura piana su entrambi i lati. La parte incavata della lama dopo la guardia, che separa la parte affilata dal manico, stata realizzata per alloggio del dito indice durante l'utilizzo, creando un punto di grip vicino alla parte affilata per un miglior controllo durante l'utilizzo del coltello.

    Questa caratteristica, insieme al grip d'appoggio sul dorso del coltello, permette una miglior presa evitando al contempo lo scivolamento della mano sulla lama. In questo modo possibile effettuare la maggior parte dei lavori di taglio con una pressione superiore.

    Destinazione d'uso: Tattico/Sportivo

    Tipo di produzione: Industriali

    Produzione Lama: Italia

    Lama: in acciaio inox N690Co

    Trattamento Lama: Testudo

    Manicatura: Forprene

    Lunghezza lama: 160mm.

    Spessore lama: 6.3mm.

    Lunghezza chiuso:

    Lunghezza totale: 290mm.

    Spessore da chiuso:

    Bilanciatura:

    Peso: 275g.

    Chiusura:

    Clip: Fodero: Cordura

    Confezione: Scatola di cartone con loghi Extrema Ratio

    Note: -

    AP-TASK
    €0.00
    Only -99 left
    Only -99 left
    Rating:
    80%
    4
    Out of stock
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