Extrema Ratio BFØ CD Black Nylon, Stone Washed N690 (04.1000.0460/SW)
- BFO CD Black Stone Washed, slim and ultra-light 50 g universal EDC folder. BF0 CD is the smallest Extrema Ratio folding knife from the Basic line. Drop Point blade made of Böhler N690 steel and technopolymer handle. Metal left/right tip-up clip.
119,08 €This product is intended for use only by adults with knowledge and experience in handling sharp cutting tools. Improper use of the knife can result in serious injuries. The blade is extremely sharp and can easily cut through skin and tissue; therefore, extra caution should always be exercised while cutting, and hands should be kept away from the cutting edge. To prevent the knife from slipping, it is recommended to cut on a stable, non-slip surface and avoid excessive force, which may cause uncontrolled blade movement.
Leaving the knife on the edge of a table, countertop, or in easily accessible places—especially where children are present—poses a significant safety risk. The knife should always be properly secured after use, ideally by placing it on a stable surface or storing it in designated knife blocks, protective sheaths, or magnetic strips. The knife should never be used for tasks it is not designed for, such as opening cans or prying objects, as this can damage the tool and lead to dangerous accidents.
A dull blade increases the risk of injury, as it requires more force and is more likely to slip from the material being cut. Therefore, it is essential to sharpen the knife regularly to maintain optimal sharpness. Additionally, proper cleaning and drying of the knife are necessary to prevent corrosion and bacterial growth. Periodic inspection of the handle and blade is recommended to check for cracks, chips, or looseness. If any damage is detected, the knife should be repaired or replaced immediately.
When using the knife, focus solely on the task at hand—avoid talking on the phone, watching television, or other distractions while cutting. Ensure proper lighting in the workspace for better visibility and control. Please note that some countries or regions have laws restricting the ownership and carrying of knives. Before purchasing or using this knife, verify that its use is legal in your location according to applicable regulations.
Following these safety guidelines will help ensure safe and effective knife use, minimizing the risk of accidents and extending the lifespan of the tool.
BFØ R Black Nylon CD Stone Washed slim and ultra-light 50 g, universal EDC folder. BFO CD is the smallest Extrema Ratio folding knife from the Basic line. An excellent knife for everyday carry with a wide blade made of excellent N690 steel, technopolymer handle, double-sided clip. The cutting capabilities of the knife are surprising in comparison to its appearance. Made of very good materials while maintaining an attractive price. Bestseller!
N690 - corrosion-resistant, high-carbon 1.07% (C), martensitic chromium steel 17.30% (Cr) with molybdenum 1.10% (Mo), vanadium 0.10% (V) and cobalt 1.50% (Co) for structural uniformity. Features exceptionally high corrosion resistance and long edge retention. One of the best tool steels in the world today. It achieves a hardness of 57-60 HRC. Manufactured by Böhler Edelstahl in Kapfenberg, Austria.
Blade - extremely sharp with a Drop Point profile, 2.5 mm thickness with a clearly marked belly blade. The blade was finished with a masking fine scratches, a non-reflective Stone Washed coating. Smooth blade (Plain type) was made with a full flat cut (Full Flat grind) which ensures durability, excellent cutting edge geometry and extreme cutting performance. Robust blade blockade mechanism - Liner-Lock.
Handle - stainless steel liners and technopolymer grip cladding (reinforced nylon) provide lightness and structural strength. Open construction, so-called „open-backed” simplifies cleaning and maintenance. A solid metal left / right-handed clip (deep-pocket metal clip) allows you to carry the knife deeply in your pocket (discreetly) in the tip-up position (tip top). In the rear part of the linings, an oval hole (lanyard hole) for a cable.
Technopolymer - also called the metal's successor. Modern material with a high percentage of glass fibers related to the polymer base and the presence (or not) of aramid (synthetic fibers, including Kevlar). It is characterized by unusual mechanical and thermal parameters. Advantages: corrosion-resistant, low weight, no maintenance (low coefficient of friction), electrical insulation (prevents the transmission of electricity), no reaction to the magnetic field, any color.
Technical specification:
Product number: 04.1000.0460/SW
Name: BF0 CD Black Stone Washed
Length of the blade: 55.0 mm / 2.16”
Thickness of the blade: 2.5 mm / 0.098”
Overall length: 140.0 mm / 5.51”
Weight: 50.0 g / 1.86 oz
Blade material: Böhler N690
Blade hardness: 58 HRC
Blade grind: Full Flat
Blade finish: Stonewashed
Handle material: Technopolymer (nylon)
Handle finish color: Black
Clip: Left / Right, Tip-Up
Clip material: Stainless Steel
Locking mechanism: Liner Lock
Opening method: Manual
Additional accessories: None
Designer: Extrema Ratio
Brand name: Extrema Ratio
Manufacturer: Extrema Ratio, Italy
Country of origin: Italy
Developed by: Sharg® company