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**GENEROUS ADDITIONAL DISCOUNT WHEN YOU PAY WITH A US POSTAL MONEY ORDER OR A CHECK** Please email us at or call us at 800-470-9414 or 801-770-4466 for more information. This option is available only for USA customers and not available on our website.



This knife 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. Since some jurisdictions restrict blade length to three inches or less, this shorter blade will be legal.

This version has the classic Testudo (black) finish. This is a very durable finish that is very protective against corrosion and oxidation

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 (side-to-side) and wraps over the end allowing for a deep pocket, discreet carry. Highly recommended for 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 point

Blade Hardness: Rockwell 58 HRC

Grinding: Flat

Serrations: No

Lock: Liner lock

Handle: Anticorodal aluminum**

Clip: Reversible and positioned to allow a deep pocket 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

Availability: Usually ships in 2-3 business days

04-1000-0144-blkdon't pay this advertised price $160.00BUY NOW $128.00Please select handle type: 
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