The Role of a Knife on a Hike
A knife is essentially an extension of your hands. There is a golden rule: the knife should do all the main work, not human muscle power. It is the most versatile tool in your arsenal, useful for getting food, building shelter, and many other tasks. It is no exaggeration to say that it is one of the most important items in your equipment. However, in unskilled hands it becomes a source of increased danger, so it is crucial to understand its capabilities and potential.
Criteria for Choosing a Reliable Knife on a Hike
The ideal blade length for a general-purpose knife is roughly the width of your palm. Many hikers prefer to carry two knives—a smaller one for precision work and a larger one for heavy tasks. Quality knives are an expensive pleasure, but such an investment will pay off with long and reliable service.
1. Blade material:
• Stainless steel: Resistant to rust and usually cheaper. The downsides are that such knives are harder to sharpen and lose their edge faster.
• Carbon steel: Easy to sharpen and holds a sharp edge for a long time. The main drawback is its tendency to corrode. Such a knife requires careful maintenance and regular cleaning, even after a protective patina (dark coating) appears. Rust can be removed with sandpaper, after which the blade should be lubricated.
2. Hardness and heat treatment:
The hardness of steel achieved through heat treatment (heating and rapid cooling) is measured on the Rockwell scale. For a general-purpose knife, 55–62 HRC is optimal. A blade that is too soft will dull quickly, while one that is too hard may break when used as a lever. If you take two knives, let the large one be harder—you can open cans with it without risk.
3. Blade geometry:
• The cutting edge should be evenly curved along its entire length—this makes the knife cut better and easier to sharpen.
• The sharp tip should enter wood without effort.
• A guard (protective plate) is a controversial feature. It can interfere with some grips, and your hand can slip onto the blade only during a forceful strike.
4. Handle and construction:
• Models where the blade and the tang of the handle are one piece (so-called “full tang”) are preferable; this provides strength.
• The handle should be ergonomic, with scales that do not slip in the hand. Wooden handles can be fitted to your palm.
• Folding knives are convenient because they are compact, but be careful: the mechanism can loosen over time, and the blade can accidentally fold onto your fingers. Do not use them for tasks requiring force (such as prying).
The Art of Sharpening: From Dull Iron to Razor Sharpness
A sharp knife is not only convenient but also safe. A dull blade slips and is more likely to injure you. A simple test: if the knife does not cut paper while held in the air, it is dull and not suitable for woodwork.
The sharpening process consists of five stages::
1. Coarse sharpening: Restoring the cutting edge on a coarse-grained stone.
2. Medium sharpening: Smoothing out nicks on a medium-grit stone.
3. Fine sharpening: Refining on a fine-grained whetstone.
4. Honing: Aligning and polishing the edge on a very smooth bar (for example, ceramic).
5. Stropping: Removing microscopic burrs with a leather belt.
How to sharpen correctly:
• Wet the sharpening stone with water (in the field) or oil (at home). Do not mix these liquids on the same stone.
• Maintain a constant angle between the blade and the stone (approximately 10–15°). Make smooth sliding movements, as if slicing a thin layer off the stone, alternating both sides of the edge.
• The first three stages are best done in stationary conditions, since sharpening stones are heavy. But a leather belt for stropping and a small bar for honing are worth taking with you.
If you don’t have a special bar at hand, you can use smooth river pebbles for honing.
Safe Use and Storage
• Carrying: Carry fixed-blade knives only in durable sheaths on your belt or in your backpack. Always know where your knife is at any given moment.
• Passing: When handing a knife to another person, hold it by the spine of the blade so that they take it by the handle. The blade should be pointed away from both you and them.
• Working: Never cut anything in the air or with the workpiece resting on your knee. Thigh cuts are extremely dangerous due to the proximity of major arteries. Use a stump or a thick log as a backing. Direct all cutting and whittling motions away from yourself.
• Attention: Work with a knife only when you are focused and in good lighting. If you are tired, distracted, or it has gotten dark, put the knife away until better times. Remember that it is not just a tool but an item of increased responsibility.
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