Know Survival Knife Parts


Know the Parts of a Sheath Knife


© copyright 2004, by Gary Benton

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As a hunter, I have found a good sheath knife can be a real lifesaver. We have all seen the movies where the main character is carrying a knife with a blade a foot long (Bowie or Rambo types). While it looks impressive, it isn’t really very practical. As an experienced hunter, it is always easy for me to spot the newest member of the hunting group who usually has very little experience in the woods. They almost always show up wearing a knife modeled after their favorite action movie star. And, unlike the movies, our hunter had to “live” with his or her knife selection for the duration of the hunt. In many ways they are lucky, because there are more experienced hunters around them.


Knives. How much do we really know about them? I cannot make you a knife expert in one small article, but I can give you a few pointers that may assist you in selecting a knife that will work the best for you in the field. Also, keep in mind, there are many different kinds of knives on the market and they are all designed for different uses. Be sure the knife you select is made of stainless steel, which reduces rust and corrosion. Learn from the experts on how to stop rust to protect your personal belongings. Now, let’s look at the components of a typical sheath knife.


A knife is made up of these important parts,


1. The Blade, the metal blade that extends from the handle. The blade has the cutting surface ground onto it. It also comes in various lengths and shapes. Each blade shape is designed for a particular task. Some knife blades are for filleting, skinning, chopping, and so on. Additionally, some blades are made of better steel than others. (If you are interested in the meals used for knife blades, the Internet has a lot of information). I won’t get into all the different metals that can be used to make knives, except to say, I prefer a 440C blade. I have found it to hold an edge well, be strong enough for about any task I would require of it, and to be a good metal. Cheap knife blades will either be impossible to sharpen, or will not hold an edge. Also, at least make sure your knife is made of stainless steel (reduces rust and corrosion). If you are interested in more information about the metals used in knife construction, I suggest you conduct a web search (I typed in knife blade metals and had 19,000 sites listed).


2. The Point. I think most of the readers know this part of the knife. This part is usually used for gutting game, piercing, or stabbing. It is also a very dangerous part of the knife. It should always be sheathed or covered when not in use. Never walk or run with an uncovered knife in your hands.


3. The Tip. The forward one fourth of the blade. It does most of the cutting and separating. The tip also includes the point.


4. The cutting edge, well, it is just that. It is the tapered length of the blade that is sharpened and designed to cut. There are many different types of edges available, but I prefer a straight edge. I have found they are better in the field for me because I can sharpen they quickly and keep them sharp with less effort. The type of edge, just like the metal used in the blade, is an individual choice.


5. The Guard or Bolster tip. This part of the knife protects your hands from the blade in the event your hand should slide on the handle during use. Knife guards come in various shapes, sizes, and designs. Some of them can be too big and actually make the knife more difficult to use. Select a knife with a guard design you find practical, not beautiful.


6. Handle. The handle of a knife can be constructed of many different types of material. I have seen them made of wood, plastic, polypropylene, and one even made from an old truck tire (rubber) in Southeast Asia. I avoid metal handles like the plague. I find them to cold to use much in severe winter weather and could actually stick to your hand if it is cold enough.


7. The Butt. This is the handle end of the knife, opposite of the tip. It is, for all practical purposes, the ‘end’ of the knife. In some survival knives this may contain a metal cap that can be unscrewed to reveal a hollow storage compartment. I, personally, see no need for the compartment. I carry my survival gear in a survival kit. But, it is an individual preference.


There are other parts to a knife, but these are the most important ones for our discussion. I want to suggest how to select a good knife, not how to make one. A good quality, well designed, sheath knife will contain all of the parts I have just explained. Please, understand, I am not discussing penknives or jackknives. They are dogs of a different color. I am only talking about sheath knives.


Ok, you have found a knife that is made of a good metal, has all the required components, now what? Simple, pick it up. A well-designed knife should feel natural in your hand. Does it feel balanced? The distribution of weight between the blade and the handle affect the balance a great deal. You do not want a knife with a blade that is too heavy, just like you don’t want a blade that is too light. Spend some time and find a properly balanced knife for your hand.


The knife, if ergonomically designed, will feel like it is one piece and actually, you should not be able to feel the differences in the weight of the blade and handle. It should feel natural, fit the hand normally, and be light enough to use for a prolonged period of time. Avoid knifes that feel too heavy, too wide, or feel “wrong” to your hand. Here again, it is a matter of choice.


Once you see the knife you want, look at the sheath. Is it made of a good quality material? Sheaths can be constructed of metal, plastics, leather, cloth, and the list goes on. I prefer a leather sheath that is re-enforced with rivets. I also make sure all sheaths are double stitched. I once lost a knife I had because the sheath was poorly constructed, so I take extra care in selecting only quality work.


Whether or not the sheath is designed so it can be tied to my leg, attached to my web harness, or secured to my ankle, matters little to me. I prefer a knife sheath that attaches, securely, to my web belt. I have found knives that I attach to other points of my body either, a) get in my way, b) cannot be reached when I really need them, or c) aren’t in the sheath when I want them.


Ok, once you have a good quality knife with a sheath, that’s all there is to it…right? Wrong. You also need to know how to sharpen your blade and how to keep the blade in good condition.


In an emergency, many different types of stone may be used to sharpen your knife blade, quartz, sandstone, or granite are very good examples. If you use a professional sharpening stone, make sure it has two sides. A good quality professional sharpening stone has both a rough side and a smooth side. Use the rough side first, then the smooth side.


Hold the handle of the knife in your right hand and apply even pressure on the blade with your fingertips. Many experienced hunters have a preferred angle to hold the knife blade (usually 13-16 degrees, or the just about the thickness of your blade), but I suggest you, as a beginner, just work at keeping the angle constant. Remember also to keep the stone wet. You can sharpen your knife by pushing the blade down a wet stone, in a slicing motion, see the illustration. Then, turn the knife over and pull the blade towards your body. Use caution here to avoid injury. Another way to sharpen you knife blade is to move the blade in a circular motion, as shown in the illustration. The key to a sharp knife is keeping a constant angle, using a wet stone, and using your fingertips for even pressure.


You knife can be preserved by wiping it down with vegetable oil after you are finished sharpening it (even stainless steel will rust, it just takes longer). Many folks use other oils, but I prefer to use a vegetable oil since I may at some point use the knife to eat with. Not to mention I use the blade to prepare an animal carcass after a kill. I just feel safer using a vegetable oil. Additionally, I also feel I should explain some basic knife safety with you.


Never run with a knife in your hand. It is too easy to fall, or trip, and stick yourself with the tip. If you feel like running, place the knife in the sheath, or drop the knife.


Never throw a knife that is not designed for throwing. You can break the blade, bend the blade, or, yep, stick yourself. Keep the knife either in the sheath, or in your hand.


Never use the blade as a screwdriver to pry things open with, or to cut metal. Use a knife only for its designed purpose, to stab or cut. Using the blade improperly may cause it to break or cause injury. The last thing you need in the woods is an injury, regardless of how small it may be.


Never use the butt of the typical sheath knife as a hammer. It is not designed to hammer with and you may damage your knife. (There are some knives on the market that have a butt designed for hammering, but I don’t trust them). If you need a hammer, then get one. Would you use a hammer to field dress game? A knife is designed for cutting, not hammering. Remember the old military adage, “Use the proper tool for the job.”


Never attempted to catch a falling knife! I have seen some nasty injuries as the result of people attempting to do just that. If you drop a knife, let it fall, while making every effort to ensure your feet are not near the impact point. You don’t need an injury.


Keep the edge of the blade sharp! A dull blade causes many more injuries than a sharp one. You should never have to apply undue pressure or force a blade to make it cut. Also, you should not have to “saw” with a blade to cut. If you do, you need to sharpen the blade or use a different type of cutting tool (perhaps you need a hatchet or ax and not a knife?). Take care of the edge on your blade and it will take care of you when you need it.


Sheath knives come in all sizes, shapes and designs. I suggest a small or medium blade, easy to maneuver, with a nice even balance. Once more I will hype the 440C blade with a straight edge as my blade choice. When you evaluate a knife ask yourself a very important question, “could I trust my life to the quality of this knife?” In some extreme situations the quality of a good blade could do just that, save your life. There are good knives out there that are not expensive, of good quality, and will last a lifetime if properly cared for.


Now you should have a better idea of how to select the one you want, with the quality and design you need. Remember that most experienced woodsmen carry a penknife or a jackknife in their pockets as well as a sheath knife. I also carry a good quality jackknife in my survival kit.


When you are hunting, or faced with a survival situation, the quality of your gear can make the difference between life and death. As my old sergeant used to say in the military, “carry quality gear, keep it in excellent condition, and it will always work when you need it, as often as you need it.” Once your game is down, or you are isolated, what you have on you may be all you have to work with. Wanna bet your knife on it?


I hope to see you in the woods soon. Stay safe.




Gary Benton is a retired United States Air Force Senior Master Sergeant. He is a graduate of a number of U.S. Air Force Survival Schools, including Arctic, Water (Sea and Ocean), Desert, Mountain, and Jungle survival schools. He spent twelve years teaching parachuting techniques and survival skills to Air Force aircrew members. He has an Associates Degree in Search and Rescue, Survival Operations, a Bachelors Degree in Safety and Health, and a Masters Degree in Psychology. Sergeant Benton retired from the USAF in 1997 with over twenty-six years of active duty.



Knife Parts

Gary Benton has over 45 years of outdoor experience in camping, hiking, fishing, and other activities. He's no armchair survival man, he's walked the walk from the arctic to the desert and all the area in between. Gary has an associates degree in Search and Rescue, Survival Operations, a B.S. in Industrial Occupational safety, and all but his thesis completed for a M.S. in Counseling Psychology.
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