This version has the classic Testudo (black) finish. This is a very durable finish that is very protective against corrosion and oxidation
The BF1 was developed to fill a demand for a very basic, lighter Extrema Ratio folder. It had input from personnel outside of Extrema Ratio to fine tune it. Not just your ordinary pocket knife.
The BF1 is easy to carry - fits well into your pocket. Has a robust point and feels substantial. A compact knife that is simple but very functional; one suitable for every day carry. The clip is reversible and wraps over the end allowing for a very discreet carry. Highly recommended as your EDC.
Length Opened: mm 170 (6.69 inches)
Length Closed: mm 101.09 (3.98 inches)
Blade Length: mm 70 (2.76 inches)
Weight: g 85 (3.0 ounces)
Blade Thickness: mm 3 (0.12 inches)
Blade Steel: N690 carbon stainless steel*
Blade Type: Tanto
Blade Hardness: Rockwell 58 HRC
Lock: Liner lock
Handle: Anticorodal aluminum**
Clip: Reversible and positioned to allow a discreet carry. Wraps over end of handle
Window Breaker: No
* The blade is made with N690 cobalt stainless steel; a high performance steel with excellent cutting and sharpening characteristics. This steel is also used in the butchering industry and to make surgical instruments.
** The handle is made of black anodized Anticorodal, an aluminum alloy that is very strong and corrosion resistant.