Fox Defender Fixed Blades

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The Fox Defender fixed blade is a robust and versatile tool designed for reliability in demanding situations. Featuring a 5mm thick N690Co stainless steel blade, it offers exceptional strength and durability. The handle is designed with deep transverse grooves to ensure a secure and comfortable grip, even during extended use. Combining high-quality materials with a thoughtfully engineered design, the Defender is well-suited for outdoor, tactical, and everyday applications.
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Fox FX-689 Defender Fixed Blade Knife 7.38 N690Co Bead Blasted Clip Point Blade, Walnut Wood Ha…Retail price: $231.99, our price: $185.59
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Fox FX-689 B Defender Fixed Blade Knife 7.38 N690Co Black Top Shield Clip Point Blade, Black GR…Retail price: $273.99, our price: $219.19
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Fox Defender Fixed Blades FAQ

The Fox Defender series updates the classic Mark 2 fighter design with a broader 5mm thick blade and modern N690Co stainless steel. These fixed blades are built for heavy-duty tactical use, featuring a full-length tang and high-performance handle materials.

What steel is used in Fox Defender fixed blades?
The Fox Defender series features N690Co stainless steel, a cobalt-enriched material that provides excellent corrosion resistance and edge retention. The blades are 5mm thick, offering significant durability for demanding outdoor and tactical environments.
How does the Fox Defender design differ from classic military knives?
While inspired by the World War II era Mark 2 fighter, the Fox Defender has a broader 7.4-inch blade and a saber-height flat grind rather than a hollow grind. This geometry, combined with increased thickness, makes the Defender a more robust tool for hard-use tasks.
Does the Fox Defender have a full tang?
Yes, the Fox Defender series uses a tang that runs the full length of the handle to ensure maximum strength. Even on variants with injection-molded handles, the steel extends through to the butt plate at the rear of the knife.
What handle materials are available for the Defender series?
The series offers handle options including traditional walnut wood or glass reinforced nylon (GRN). The GRN handles feature deep transverse grooves for a secure grip and have a slightly oval shape that remains comfortable during extended use.
What type of sheath comes with the Fox Defender?
The Fox Defender comes with either a Kydex or a leather sheath depending on the specific model. The Kydex versions include MOLLE-style attachments and are designed with a hole pattern that is compatible with standard Tech Lock mounting systems.