Cold Steel · Code 39FK

Fixed Knife Cold Steel DOUBLE AGENT I 39FK

★★★★★ 4,8 147 reviews Heureka verified
Cold Steel Double Agent I 39FK is a fixed blade knife with a practical and original design that expands its range of use thanks to its double edge. It is a versatile and robust tool you can rely on in demanding situations as well as for everyday tasks. Double Agent I – functional performance in every situation.
Knives Fixed knives

Detailed product description

Fixed Knife Cold Steel DOUBLE AGENT I 39FK

A versatile fixed blade with dual cutting options

Cold Steel Double Agent I 39FK is a fixed blade knife that stands out with its original design and practical functionality. This model is designed to double the ways you can use the blade — it offers a double edge that broadens the range of tasks you can handle with the knife. Whether it is outdoor activities, routine material cutting, or quick improvised solutions in the field, the Double Agent I is ready to be your dependable tool.

With a powerful yet controllable design, this is a fixed blade knife suitable for anyone who wants a functional tool without compromise.

Model 39FK

Main blade length approx. 11–11.5 cm

Main edge + reverse edge on the spine

Secure‑Ex® sheath

Knife type fixed blade

Intended use outdoor, survival, EDC

The Double Agent I is another one of them — a tool designed for performance.

Key parameters

Overall length cca 22–23 cm
Weight cca 200–220 g
Steel stainless steel
Steel hardness cca 57-60 HRC
Handle ergonomický, texturovaný polymer
Blade thickness cca 4–5 mm
Blade finish satén / stonewash
Blade shape Standardní profil s druhým ostřím
Grind plochý

About Cold Steel

Cold Steel is a brand with a long-standing tradition and reputation for making reliable knives that perform even in demanding situations.

Their products are characterized by simple yet functional design, solid construction, and materials that can withstand repeated and intensive use.

Character and philosophy

The Cold Steel Double Agent I is designed for users who demand more cutting options in a single tool. This model combines a classic main blade with a second edge on the opposite side — allowing cuts from multiple angles without turning the knife, or reverse use without losing functionality.

The double edge is a logical extension of the traditional fixed blade — it increases the knife's versatility and gives you a tool capable of taking on more roles than a standard single-edge blade. You will appreciate this concept especially in outdoor and survival situations, where quick adaptation and variable use are most valuable.

Key benefits

  • Double edge — two functional edges in one knife
  • Robust construction — ready for intensive use
  • Ergonomic handle — secure grip even in wet conditions
  • Secure‑Ex® sheath — safe and durable carry
  • Versatile use — from outdoor activities to everyday tasks

Possible limitations

  • The double edge may not be suitable for some common tasks
  • The taller blade profile is not ideal for precise fine cuts

Maintenance and care

  • Clean and dry the blade after use
  • Check the edge regularly and resharpen as needed
  • Keep the sheath free of dirt for proper retention
  • Store the knife in a dry environment

To maintain the edge, we recommend the Spyderco Tri‑Angle Sharpmaker Complete Sharpening System 204MF – ideal for plain edges as well.🛒 Available on our website Moskito.cz.

Final verdict

Cold Steel Double Agent I 39FK is a fixed blade knife with a practical and original design that expands its range of use thanks to its double edge. It is a versatile and robust tool you can rely on in demanding situations as well as for everyday tasks.

Double Agent I – functional performance in every situation.

Customer reviews

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