
Extrema Ratio Knife ANT Black
The Extrema Ratio ANT Black is the smallest folding knife of the brand, yet it impresses with remarkable sturdiness and durability. The 50 mm long Sheep-Foot blade is made of Böhler N690 steel, hardened to about 58 HRC – a balanced ratio of edge retention and toughness.
The handle consists of two parts: one side made of anodized anticorodal aluminium, the other side of hardened steel, which also serves as the frame and blade lock (Frame Lock). A part of the steel frame is bent inward so that the blade is securely fixed when opened.
For carrying, a steel clip is attached to the handle side, allowing the knife to be discreetly carried in the pocket. Additionally, there is an opening for a lanyard on the blade tang. The compact total length of 127 mm at only 42 g weight makes the knife very unobtrusive yet functional.
The ANT Black is ideal for everyday carry (EDC), tactical uses, or as a reliable backup knife. Thanks to its high-quality materials and clear, functional design, it stands for robustness, precision, and Italian craftsmanship.
Knife sales in Switzerland – Important notes
At Alpine Fox you will find only knives that are not classified as weapons under the Swiss Weapons Act (WG). We deliberately offer only models whose possession and purchase in Switzerland is fully legal.
There is only one requirement for buying a knife:
You must be at least 18 years old.
We still recommend familiarizing yourself with the legal basics when acquiring knives and handling these products responsibly.



