Extrema Ratio 04.1000.0143/BLK BF1 CD Black
Introducing the Extrema Ratio 04.1000.0143/BLK BF1 CD Black—a sleek, powerhouse folding knife that transforms everyday challenges into effortless tasks. Born from decades of Italian craftsmanship and battle-tested performance, the BF1 CD Black seamlessly blends military-grade toughness with everyday carry convenience. Whether you’re carving wood on a camping trip, opening boxes at home, or tackling unexpected emergencies, this knife rises to the occasion with unwavering precision and style.
Crafted in Italy since 1997, Extrema Ratio has built a reputation for forging blades that stand up to the harshest demands of military, law enforcement, and survival professionals. The BF1 CD Black is no exception: every component has been refined to deliver top-tier functionality without sacrificing elegance. Its deep-black burnished finish resists corrosion and glare, while the flat grind delivers a razor-sharp edge that stays keen through repeated use.
At just 88 grams, the BF1 CD Black feels featherlight in your pocket yet packs a punch when you need it. The robust BöHLER N690 steel blade (58 HRC) offers an ideal balance of hardness and toughness, slicing through material cleanly and holding its edge longer. A thick, reinforced tip stands up to prying and piercing tasks, giving you the confidence to tackle any job head-on.
Ergonomics meet stealth in the handle design: anticorodal anodized aluminum contours fit your hand naturally, while lowered flats expose the discreet opening “pins” for fast, one-handed deployment. The reversible clip hugs the knife’s tang for ultra-low-profile carry, so you can move under the radar with absolute assurance. When deployed, the proven liner-lock mechanism secures the blade firmly in place, giving you rock-solid stability and safety during use.
From the moment you unbox the BF1 CD Black, you’ll feel the meticulous attention to detail that defines Extrema Ratio’s legacy. This is more than a tool—it’s a trusted companion engineered to enhance your performance, wherever your adventures take you. Get ready to experience the unrivaled synergy of Italian artistry, battlefield heritage, and everyday practicality with the BF1 CD Black.
Key Features
- Featherlight 88 g design delivers all-day carry comfort
- BöHLER N690 steel (58 HRC) ensures long-lasting edge retention
- Burnished black finish resists corrosion and unwanted reflections
- Ergonomic anodized-aluminum handle fits naturally in hand
- Low-profile reversible clip offers discreet, ambidextrous carry
- Quick one-handed opening via flush “pin” deployment
- Secure liner-lock system for steadfast blade stability
Specifications
- Overall length (open): 171 mm
- Blade thickness: 3 mm
- Blade material: BöHLER N690 stainless steel (58 HRC)
- Handle material: Anticorodal anodized aluminum
- Closed weight: 88 g
- Origin: Handmade in Italy
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