Extrema Ratio BFK Zero N690 All Black folding knife
Extrema Ratio, located in Prato, Italy has been designing, manufacturing and selling high-quality combat knives since 1997. The company gained a great reputation for excellence that is unsurpassed in the military and tactical industry. The company prides itself in design, material and quality to deliver a high end product that meets the most severe standards. The first class handwork and well-selected material have contributed to form the image of the Extrema Ratio trademark all over the world.
Compact Reliability in Earthy Tones
The Extrema Ratio BFK Zero N690 Tactical Mud brings the practicality and solid locking mechanism of the BFK series to a smaller, pocket-friendly format. Measuring 167 mm overall and weighing 85.5 g, it is a convenient choice for daily cutting tasks when a full-size folder feels too bulky. The handle’s warm, earthy Tactical Mud colour gives the knife an understated appearance.
The 68 mm flat-ground blade is crafted from Böhler N690 stainless steel, hardened to 58 HRC for a dependable balance of hardness and toughness. Its black burnished finish meets the MIL-C-13924 specification and contrasts with the handle’s muted colour.
Machined handle scales in anodized Anticorodal aluminium provide a secure grip with dry or wet hands. The same Crossbar Lock used in the full-size BFK holds the blade securely open and can be operated with one hand from either side, allowing the fingers to remain clear of the cutting edge’s path when closing.
A reversible pocket clip for left- or right-side carry and compact proportions make the BFK Zero a discreet companion for everyday use.
Specifications
Blade material
N690
Blade style
Tanto
Blade grind
Full Flat
Blade hardness
HRC 58
Blade coating / finish
MIL-C-13924
Locking mechanism
Cross-bar Lock
Frame
Stainless steel
Opening mechanism
Hole
Handle
Anticorodal aluminum alloy
Weight:
3.034 oz
Overall length:
6.57″
Blade length:
2.68″
Length folded:
3.94″
Blade thickness:
0.11″
Country of origin:
Italy
Other features
Pocket clip
Emission offsetting
Greener use of materials
Sources from nature
Because it's simple yet important
Lamnia's speciality is a selection of more than 5,000 knives and folding knives. We carry hundreds of Scandinavian knives, the famous Finnish Puukko knives among them, folding knives, hunting knives and kitchen cutlery from the world's best brands, such as Spyderco, Cold Steel, Böker, Fox Cutlery and Benchmade.