Louis Martin Custom Knives · Est. 1993

Louis Martin Custom Knives

Handmade Survival Knives

Quick Answer

A survival knife is a robust fixed-blade knife designed for wilderness survival tasks: batoning wood, building shelter, fire-starting, food prep, and self-defense. Louis Martin survival knives are full-tang, hand-forged in high-carbon steel for maximum field reliability.

In a survival situation, your knife is your most critical tool. Louis Martin survival knives are engineered for this reality — full-tang construction that can baton through hardwood without breaking, high-carbon steel that takes and holds a field-sharp edge, and handles that stay secure in cold, wet gloved hands.

Characteristics & Construction

Full-Tang Construction

Every Louis Martin survival knife is full-tang — the blade steel runs the complete length of the handle. This eliminates the weakest point of partial-tang knives: the tang-to-handle joint. Full-tang survival knives can be batoned, pried, and used as a camp axe without risk of handle separation.

Blade Thickness

Survival blades are thick — 4–6mm spine — to withstand lateral stress from prying, batoning, and chopping tasks. This thickness is a deliberate trade-off: slightly more difficult to sharpen but dramatically more durable.

Steel Selection

We use 1080 and 1095 high-carbon steel for our survival knives. These steels are tough, easy to sharpen in the field with minimal equipment, and can be spark-struck with a ferro rod for fire starting.

Spine Features

Many of our survival knives feature a squared, 90° spine for ferro rod striking and a thumb ramp with jimping for controlled push cuts. Some models include a partial saw back.

Care & Maintenance

  1. 1

    Dry and oil after field use

    High-carbon survival blades rust quickly in field conditions. Clean and oil the blade at every camp stop — your survival knife is useless if it's seized with rust.

  2. 2

    Maintain your ferro rod capability

    Keep the spine clean and sharp-cornered. Filing the spine flat maintains the 90° edge required to throw sparks from a ferro rod.

  3. 3

    Sharpen on natural stone

    In a true survival situation, fine-grained river stones work as improvised whetstones. Practice sharpening your knife on natural stone so you're not learning this skill when you need it.

  4. 4

    Check handle scales for cracks

    Wood and synthetic handle scales can crack under extreme cold. Inspect and re-epoxy any loose scales before extended wilderness trips.

  5. 5

    Season the leather sheath

    Condition the leather sheath before any extended field use. A supple sheath is quieter, more water-resistant, and retains its shape around the knife better than dried leather.

Survival Knives — Frequently Asked Questions

What makes a good survival knife?
The best survival knives share four traits: full-tang construction, 4–6 inch blade length (long enough for utility tasks, short enough for precision), high-carbon steel (1080, 1095) that can be field-sharpened and ferro-rod struck, and a handle that stays secure in wet and cold conditions.
What is the best blade length for a survival knife?
A 4.5–6 inch blade is the survival sweet spot. Long enough to baton kindling, short enough for fine carving and food prep. Blades over 7 inches become more difficult to control for precise tasks and heavier to carry on extended trips.
Can I use a survival knife as a camp axe?
Full-tang survival knives can be batoned (struck with a baton stick) through small logs for splitting kindling. They are not a replacement for a proper axe for sustained chopping, but can serve as a camp axe in an emergency.
What is the difference between a survival knife and a bushcraft knife?
The terms overlap. Bushcraft knives tend to be thinner-bladed and optimized for carving, fine woodworking, and camp craft. Survival knives tend to be thicker, more robust, and better at batoning and heavy-duty tasks. The best field knife often splits the difference.
Can a Damascus knife be a survival knife?
High-carbon Damascus is an excellent survival blade — its carbon content allows ferro rod striking and it takes a very keen edge. The maintenance requirement (keep it dry and oiled) is manageable in the field with discipline.

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