Name: Extrema Ratio BFO CD, Stonewashed 04.1000.0460/SW pocket knife
Brand: Extrema Ratio
SKU: ER0410000460SW
Price: 723 DKK
Availability: BackOrder
Rating: 10 (1 reviews)

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The **Extrema Ratio BFO** is the smallest pocket knife in the Extrema Ratio range. The blade is just 5.5 cm long. This makes the BFO particularly suitable for everyday use or as a backup pocket knife alongside a larger knife.

You open the blade of this version with the thumb hole, then a solid liner lock locks the blade in place. You can carry the BFO with the pocket clip, or simply put it in your pocket without using the clip.

## Böhler N690 steel blade

The blade is made from Austrian Böhler N690 steel. This is a stainless steel with long sharpness retention that is also used for surgical tools. N690 is highly durable and can be sharpened until razor sharp.

## Nylon handle

The handle is made from nylon, a strong yet lightweight material. It also has the advantage that it doesn't get very hot or cold like steel or aluminium, so it is practical in extreme weather conditions.

## Extrema Ratio: Italian knives for professional use

The Italian brand Extrema Ratio has been producing sleek tactical knives for professional use ever since 1997. This includes first responders such as soldiers, police officers and firefighters. Extrema Ratio knives are made to adhere to the highest military standards. These knives are produced in cooperation with the Italian army which carefully tests and carries them. The result: proven, top-quality products. Unparalleled in the world of tactical knives.

Extrema Ratio BFO CD, Stonewashed 04.1000.0460/SW pocket knife

brand

colour

handedness

blade_finish

opening_system

handle_material

knife_edge_type

multitool_tools

sharpening_type

knife_bladeshape

pocketknife_lock

pocketknife_steel

pocketknife_onehanded

legal_agecheck_key

value_multitool_tools_number

knife_sheath

value_weight

value_blade_length

value_opened_length

value_blade_thickness

expectedRestockDate

msrp_price

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meetsExpectationsStars

authorCity

Estupenda navaja para llevar en el bolsillo. Buen acero y reducidas dimensiones.

engravable

Personalize it! We can engrave many products. Great as a gift! [Read more about the options here](/en/pt/-order-with-engraving.htm). Looking for an engraving? Don't forget to add the product '[Order with engraving](/en/pt/-order-with-engraving.htm)' to your order. 

Can be engraved

warranty

Almost all the products we sell come with a manufacturing warranty. Want to learn more about the warranty? Read our topic: [warranty explained](/en/ct/warranty-explained.htm)

Warranty

origin

The country of origin is the country the product is produced, as far as we know. This may differ from the country where the brand itself is located.

Country of origin

article_number_site

General information

We always measure the blade length ourselves. This is the length of the blade from the tip to the front of the handle. This may deviate from the manufacturer's specification.

Blade length

value_blade_length_edge

The length of the cutting edge is measured from the tip to the start of the edge. This may deviate from the manufacturer's specification.

Cutting edge length

We always measure the blade thickness at the thickest part of the blade. Often just before the handle. This may deviate from the manufacturer's specification.

Blade thickness

We always weigh a product as bare as possible. Knives and axes always without their sheath, lights (if possible) without their battery. For knife sets we measure the entire weight. This may deviate from the manufacturer's specifications.

Weight

Dimensions & weight

value_steel_hardness

The hardness in Rockwell C for a knife is always according to the manufacturer's specifications. When a manufacturer specifies a value of 56-58HRC, for instance, we always note the highest value, i.e. 58HRC.

Hardness

Material

This concerns the type of edge [Want to learn more about a serrated versus a plain edge](/en/ct/pocket-knives-difference-plain-edge-serrated.htm)?

Type of edge

molle_compatible

MOLLE is a mounting system that allows you to attach sheaths and other accessories to backpacks. With this specification we indicate whether a product is already MOLLE-compatible by default. [Want to learn more MOLLE](/en/ct/what-is-molle.htm)?

MOLLE-compatible

pocket_blade_type

pocketknife_clip

pocketknife_clip_position

pocketknife_clip_side

This is the type of lock used. There are many different types of locks that are used by many different brands. [Want to learn more about locks](/en/ct/locking-mechanisms-on-pocket-knives.htm)?

Lock

In terms of grind we are talking about how the complete blade thickness extends into the edge. Want to learn more about grinds? [Read all about grinds on knives](/en/ct/knife-grinds.htm).

Extrema Ratio BFO CD, Stonewashed 04.1000.0460/SW pocket knife

Extrema Ratio BFO CD, Stonewashed 04.1000.0460/SW pocket knife

Full description

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Specifications

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Extrema Ratio BFO CD, Stonewashed 04.1000.0460/SW pocket knife

Extrema Ratio BFO CD, Stonewashed 04.1000.0460/SW pocket knife

Extrema Ratio BFO CD, Stonewashed 04.1000.0460/SW pocket knife

Full description

Specifications

Reviews

Specifications

General information

Dimensions & weight

Material

Features & functions

Scope of delivery

Extrema Ratio BFO CD, Stonewashed 04.1000.0460/SW pocket knife

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