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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.


A well-designed substantial folder that has the Extrema Ratio Italian look and feel. Extrema Ratio has uniquely equipped the HF1 with a pin that you can inserted through the handle and the blade. The optional use of this pin helps you make the HF1 as reliable and as sturdy as a fixed blade when you need it. The HF1 is fitted with a Cordura sheath that you can carry on a belt and is also MOLLE compatible. This folder is the smaller size of the HF models.The HF1 has the Extrema Ratio unmistakable attention to detail.


Does not have thumb studs. The blade has an extended lever to facilitate opening the blade. This lever has a lanyard hole. Available with either the classic Extrema Ratio drop point or tanto point. The HF1 blade has a black finish and is sharp out-of-the-box and ready for your immediate use.


The HF1 handle has a slight curve that gives you a comfortable, reliable grip. Ergonomically designed. Ridged along the handle spine – different from other Extrema Ratio folders. Has a lanyard hole on the butt end that holds the pin on a cord. Since the handle has this curve, Extrema Ratio has included an extra clip that fits this curve if you need your clip on the other side. A wrench is included if you need to adjust your clip. Tip up carry.


The HF1 has a liner-lock plus an optional manual lock for extra security. The included pin also provides an extra layer of safety if used.


Includes a heavy duty, quality Cordura sheath that is MOLLE compatible. Has a fold over flap with Velcro.

Total Length of Knife Opened: mm 240.00 (9.45 inches)

Length of Closed Knife: mm 152.40 (6.00 inches)

Blade Length: mm 91.00 (3.58 inches)

Handle Length: mm 139.70 (5.50 inches)

Weight of Knife and Pin: g 263.65 (9.30 ounces)

Blade Thickness (Widest Part): mm 5.60 (.22 inches)

Blade Width (Widest Section): mm 30.73 (1.21 inches)

Closed Knife Thickness (Not Including Clip): mm 17.78 (0.70 inches)

Blade Steel: Bohler N690 cobalt stainless steel*

Blade Hardness: Rockwell 58 HRC

Grinding: Flat

Serrations on Blade: No

Locks: Liner-lock plus manual lock, and reinforcing pin

Handle Material: Anodized anticorodal aluminum alloy **

Belt Clip: Yes. One attached to the folder and an extra one with wrench

Window Breaker: No

Sheath: Cordura sheath that is MOLLE compatible


* 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 aluminum, an aluminum alloy that is very strong and corrosion resistant

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