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Exceptional Customer Service

Extrema Ratio Ultramarine Black

18+
£549.95
(1 review) Write a Review
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The ULTRAMARINE is the result of four years of
research and development, conducted by Extrema
Ratio in collaboration with Military Dive Teams of the
Italian Special Forces, Law Enforcement Dive Teams
and Civilian Underwater Operation Experts. Units
involved in underwater and amphibian operations use
a variety of specialty tools.
The main objective of the ULTRAMARINE Project is to
substitute these different tools with one versatile
utensil capable of performing the multitude of tasks
that professionals in the fields are asked to perform in
these difficult and challenging operations.



FIELD OPERATIONS


As with any respectable working tool, the mass of the
blade has to be heavy enough to efficiently chop
branches and shrubs in order to make emergency
shelters, camouflage emplacements, stretchers,
utensils or sector stakes.

  • The serrations facilitate cutting rope when the
    blade is dull from wear & tear.
  • The steel tang can
    be used as a hammer or glass breaking tool.



    UNDERWATER OPERATIONS


    To avoid damaging buoyancy or flotation devices
    during on-board operations with the exposed metal
    components of the knife, a flap was incorporated to
    cover the sheath & knife.

  • The slot in the blade was
    developed for use as a screw-pin shackle wrench.
  • The retention lanyard allows the user to work on
    equipment without having to sheath the knife.
  • The
    handle was designed with a plus sized grip & a special
    anti-slip material developed by Extrema Ratio to
    facilitate retention while wearing neoprene gloves.
  • With load positioned on the weakest end of the
    line cutter the blade withstands a load index of 45 kg
    (99 lbs).
  • On the blade with screw - pin shackle
    wrench slot, with load positioned in the center, the
    blade withstands a load index of 70 kg (154 lbs).
  • The sheath is designed to be sleek and
    hydrodynamic, with a close, tight fit to the body that
    reduces the possibility of entanglements.
  • The
    sheath also has a quick-release function that allows
    the knife to be rapidly drawn by simply pulling on the
    upper portion of the protective flap.
  • The
    protective flap uses special anti-wet snap fasteners
    that are specifically designed for water environments.
  • O-ring and retention system are disabled with a
    strong pull.
  • In panic or shock situations the user will have
    access to the knife.
  • The knife is designed with a specialized net & line
    cutting system for use in entanglement emergencies.
  • The knife is designed with reduced hilt guards to
    reduce the chance of entanglement and snaring while
    in use.
  • The design of the handle allows the operator to
    distinguish the orientation of the blade by feel in low
    light / no light situations.
  • The pointed tang was developed as a glass break
    device.



    SURVIVAL


    Besides being a good camp knife the ULTRAMARINE
    was designed so the handle could be disassembled,
    the blade attached to a pole and used as a spear.

  • The blade has been treated with a matt finish to
    reduce light reflection wile operating in hostile
    environments.
  • The sheath incorporates two
    sharpening diamond sharpening plates: one for the
    primary blade and the second for the net cutter.

    Supplied with the knife are 2 TEK-LOK belt
    support, 2 additional leg straps, 1 Lubra-Skin spray
    (100ml), 1 ink eraser, 2 additional O-ring, 1 additional
    TEK-LOK screw, 1 additional washer, 1 additional red
    Velcro strap.


  • SKU
    ER-04.1000.0320/BLK
    Brand:
    Extrema Ratio
    Colour:
    Black
    Age Restriction:
    18+
    Blade Length (cm)
    15.0000
    Overall Length (cm)
    29.8000
    Blade Material:
    N690, X105CrCoMo182
    Blade Thickness (cm)
    0.0
    Warranty:
    1 Year
    Handle Material:
    Polyamide
    Newest:
    2014-01-15 00:00:00
    Shipping Group:
    STANDARD
    Parent Base Price:
    549.9500
    Lead Time Dropdown:
    4 - 6 Weeks

    Description


    The ULTRAMARINE is the result of four years of
    research and development, conducted by Extrema
    Ratio in collaboration with Military Dive Teams of the
    Italian Special Forces, Law Enforcement Dive Teams
    and Civilian Underwater Operation Experts. Units
    involved in underwater and amphibian operations use
    a variety of specialty tools.
    The main objective of the ULTRAMARINE Project is to
    substitute these different tools with one versatile
    utensil capable of performing the multitude of tasks
    that professionals in the fields are asked to perform in
    these difficult and challenging operations.



    FIELD OPERATIONS


    As with any respectable working tool, the mass of the
    blade has to be heavy enough to efficiently chop
    branches and shrubs in order to make emergency
    shelters, camouflage emplacements, stretchers,
    utensils or sector stakes.

  • The serrations facilitate cutting rope when the
    blade is dull from wear & tear.
  • The steel tang can
    be used as a hammer or glass breaking tool.



    UNDERWATER OPERATIONS


    To avoid damaging buoyancy or flotation devices
    during on-board operations with the exposed metal
    components of the knife, a flap was incorporated to
    cover the sheath & knife.

  • The slot in the blade was
    developed for use as a screw-pin shackle wrench.
  • The retention lanyard allows the user to work on
    equipment without having to sheath the knife.
  • The
    handle was designed with a plus sized grip & a special
    anti-slip material developed by Extrema Ratio to
    facilitate retention while wearing neoprene gloves.
  • With load positioned on the weakest end of the
    line cutter the blade withstands a load index of 45 kg
    (99 lbs).
  • On the blade with screw - pin shackle
    wrench slot, with load positioned in the center, the
    blade withstands a load index of 70 kg (154 lbs).
  • The sheath is designed to be sleek and
    hydrodynamic, with a close, tight fit to the body that
    reduces the possibility of entanglements.
  • The
    sheath also has a quick-release function that allows
    the knife to be rapidly drawn by simply pulling on the
    upper portion of the protective flap.
  • The
    protective flap uses special anti-wet snap fasteners
    that are specifically designed for water environments.
  • O-ring and retention system are disabled with a
    strong pull.
  • In panic or shock situations the user will have
    access to the knife.
  • The knife is designed with a specialized net & line
    cutting system for use in entanglement emergencies.
  • The knife is designed with reduced hilt guards to
    reduce the chance of entanglement and snaring while
    in use.
  • The design of the handle allows the operator to
    distinguish the orientation of the blade by feel in low
    light / no light situations.
  • The pointed tang was developed as a glass break
    device.



    SURVIVAL


    Besides being a good camp knife the ULTRAMARINE
    was designed so the handle could be disassembled,
    the blade attached to a pole and used as a spear.

  • The blade has been treated with a matt finish to
    reduce light reflection wile operating in hostile
    environments.
  • The sheath incorporates two
    sharpening diamond sharpening plates: one for the
    primary blade and the second for the net cutter.

    Supplied with the knife are 2 TEK-LOK belt
    support, 2 additional leg straps, 1 Lubra-Skin spray
    (100ml), 1 ink eraser, 2 additional O-ring, 1 additional
    TEK-LOK screw, 1 additional washer, 1 additional red
    Velcro strap.


  • Specification


    SKU
    ER-04.1000.0320/BLK
    Brand:
    Extrema Ratio
    Colour:
    Black
    Age Restriction:
    18+
    Blade Length (cm)
    15.0000
    Overall Length (cm)
    29.8000
    Blade Material:
    N690, X105CrCoMo182
    Blade Thickness (cm)
    0.0
    Warranty:
    1 Year
    Handle Material:
    Polyamide
    Newest:
    2014-01-15 00:00:00
    Shipping Group:
    STANDARD
    Parent Base Price:
    549.9500
    Lead Time Dropdown:
    4 - 6 Weeks

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    Reviews


    • 5
      Almost awesome

      Posted by Damocles on 2nd Aug 2011

      Outstanding knife quality manufacture but the design is flawed as I have never seen any shackle used underwater in 34 years off military and commercial diving that is small enough to benefit from the inclusion of the shackle groove in the blade for me this feature should be removed and what a knife this would become. A non magnetic version wold arouse greater military interest.

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