How to make your own stone knife at home. How to make a stone knife with your own hands. Stone Age knives in modern conditions

Stone Age knives were flint or obsilian plates, slightly curved along the entire length (rarely straight) with a small "sharpened uchatka", and almost never looked like knives in the modern sense - just oblong plates of various shapes.

Materials for making a stone knife:

Obsidian is a homogeneous volcanic glass that has passed through the rapid cooling of molten rocks. Obsidian can be found in the Aeolian Islands, Iceland, the Caucasus, Siberia and Kamchatka.

Quartz is one of the most common minerals in the earth's crust, a rock-forming mineral of most igneous and metamorphic rocks. 12 percent of the earth's crust is made up of quartz.

Flint - nodules of silica (SiO2) in sedimentary rocks. Often painted with iron and manganese oxides in different colors, with smooth transitions between them

Shales are rocks with a parallel (layered) arrangement of the minerals that make up their composition. Shales are characterized by schistosity - the ability to easily split into separate plates.

And so let's start, we take a suitable stone, it should be one and a half times larger than the planned tool and not have cracks.

With a blow of a hard smooth stone, split the workpiece so that a flat surface is formed. The impact should be applied at an angle less than 90°. After a good blow, you should get a flat chip with a cutting edge, if this is enough for us, we can cut, since the edge is sharp.
If you want to give a certain shape, then you should take a bone or hard wood and “cut” a little, the main thing here is to be careful and not to rush anywhere.
The handle can be wrapped with improvised materials (leather, fabric, young bark) or the resulting blade can be fixed in wood or bone and wrapped in the same way

This is how stone knives are usually made in the wild. At home, you can chip off the edges of a stone blank with a small hammer. The stone blank itself is best placed on a stable workbench or table, where you first put a piece of thick felt. On felt, the stone will not vibrate from hammer blows. The blows themselves will be extinguished and the probability of an unwanted split of the stone will become much less.

Fine-tuning the blade can be done with pliers - gently chipping and pinching off small pieces from the working edge. The blade to the handle is best fastened with epoxy resins, which can be styled on top, masking with strips of rawhide.

Advantages of a stone knife - a very sharp weapon that is not afraid of corrosion and does not require sharpening. Disadvantages - fragility, afraid of falls and sharp blows, from which it can crack

Knives, spears and arrows fall under the category of edged weapons. To begin with, we will learn how to make the most necessary type of weapon for survival - a knife. The knife performs three main functions. A knife can be used to pierce, hem or chop and cut. The knife is also an invaluable tool for crafting other gear for your survival. You may find yourself in an emergency without a knife, or you may need another type of knife or spear, so you can improvise and use stone, bone, wood, metal, or other suitable material to make the blade of a knife or spear.

STONE KNIFE

In order to make a stone knife you need a sharp piece of stone, a percussion tool and a peeling tool. A percussion tool is a blunt-edged tool used to break off small pieces of stone. A flaking tool is a sharp tool used to separate thin, flat pieces of stone. You can make a chipping tool out of wood, bone, or metal, and a peeling tool out of bone, horn, or soft iron.

In order to make a rough knife of the desired shape from a sharp piece of stone (obsidian, quartz, flint or slate), use a percussion tool. Try to make the knife quite thin. Then, using a peeling tool, carefully work its edges. This action will cause the "flakes" to come off the opposite side of the edge, leaving behind a razor sharp edge. Use the peeling tool along the entire length of the edge of the future knife. In the end, you will have a very sharp cutting edge that can be used like a knife. It remains to attach the resulting blade to the desired type of handle, or simply make a handle by winding a rope or other suitable material.

Stone can make a great piercing and grinding tool, but it's hard to get a good cutting edge. Although, some stones, such as flint, can have very thin edges. In the next post of this series, we will make a knife out of bone and wood.

Make stone axes man learned more than 4 million years ago. Archaeologists very often find arrowheads, knives and axes that are made of stone. And if in those distant times it was an important part of everyday life. And the future of an individual family or even a whole tribe depended on how well it was done.
Various materials were used for axes, but most often they were made of silicon.
Nowadays, this art has almost been completely forgotten and not many people can make stone axes. However, there are clubs and groups where like-minded people who are fond of archeology gather and try to restore this whole process, and there are even courses where, for a fee, they can teach how to make a stone axe.
It's quite funny to watch a group of people sit and thresh stones on their knees. They are so passionate and completely immersed in this activity that they can spend the whole day behind it, because without proper skill it is quite difficult to make a stone axe.

In words, it would seem that everything is quite simple. You just need to break off a piece of the right size with a strong blow of a stone on a stone and you're done. But no, you have to sweat, as they say, and it takes a lot of time.

How to make a stone ax

To make stone chipper First of all, you need to prepare the necessary tools.
Since in those distant times people were not at all spoiled for a convenient and reliable tool, in order to fully understand and feel the whole process of making an axe, we will use “unforbidden” inventory.

If you do get to training and you try to make a copy of an ancient stone axe, then be sure to use protective equipment such as goggles and gloves.

Small fragments can get into the eyes, and the sharp edges of the stone can be cut.

As in any business, you first need to choose the right size stone, which we will process.

Therefore, by hitting stone on stone, you can give the necessary shape that you like.

After all, a hand ax is an individual tool that belonged to one owner. And processing by hand, the hand ax acquired in the future such a shape, thanks to which the stone sat comfortably and securely in the hand.

Thus, our instrument gradually begins to take shape.

The edges need to be sharpened, no need to strive for a perfect “sharpening” now, this will be the next step. Now it is only necessary to form and roughen the hand stone ax

After the hand ax is formed, you can begin to “sharpen” it and fine, jewelry processing.

In those distant times, there were no tools, so the processing was carried out with improvised means.

One of these tools was deer antlers, which were left in abundance after a successful hunt.
They are soft and durable and very convenient to bring them to perfect condition.

With strong and accurate blows, you can “sharpen” the edges. If earlier, by hitting stone against stone, large pieces were broken off and shaped, now small sections are removed and it is possible to process the future ax more jewelry.

It was in this way that our ancestors created the main tool of labor and hunting - a stone hand axe.

In this article you will find, perhaps, the most necessary minimum of historical information about where such a wonderful and simple (as it may seem at first glance) thing like a knife came from.

We will go through the history of the appearance of the first knives, look in order at all the significant stages in the development of both the blades themselves and humanity as a whole. First of all, let's turn to our favorite Wikipedia. How does she give us the definition of what a knife is?

What is a knife and its definition

A "knife" is a cutting tool whose working body is a blade - a strip of hard material (usually metal) with a blade on one or more sides. In the design, the blade and the handle can most often be distinguished.

In general, as we wrote at the very beginning, it does not look so difficult, does it? On the one hand yes...

On the other hand, mankind has been using knives since the Paleolithic, i.e. from the Stone Age to the present day. The knife remains still relevant and even more so, in the modern world a huge variety of types, types and uses of the knife has appeared.

In practice, we have the fact that the more knowledge and technology appears in humanity, the greater the knife variety appears in the world. And it all started like this...

Stone Age knife: Neanderthals and their first knives

Before you, presumably, one of the first inventors of the knife and he lived about 2.6 million years ago.

Knives were made from bone, stone, flint plates or volcanic glass.

In the Stone Age, people made knives from bone, horn and stone, but still most often from flint plates or obsidian, which, in fact, are volcanic glass. They made them very simply - they took large pieces and crushed or broke them into pieces. Due to its structure, silicon, when broken, breaks into pieces with a fairly sharp edge.

It is clear that such knives were not bad at that ancient stage of development, they were sharp and did not dull for a very long time. They also had several disadvantages inherent in any stone, glass and ceramics:

Nowadays, finding a knife "in the design of the Stone Age" will not be difficult. In this case, the knife is made of Damascus steel.

On the territory of modern China, for example, silicon and obsidian were so scarce that bamboo knives became widespread. But knives made of bone were common among the peoples of the Far North until the 19th century.

Bronze Age: Spartan and Roman knife

And these are the legionnaires of the Roman Empire, which existed for 16 centuries.

About five thousand years ago, a person nevertheless mastered the extraction and processing of metal, and began to make knives from copper and bronze. Actually, all antiquity from the time of the ancient Hellenes (they are also ancient Greeks) to the ancient Romans and Byzantium is the triumph of copper and bronze over stone.

Knives of that time were most often solid

After the development of copper and bronze, empires were created, which, in terms of territorial extent and time of existence, have no equal to this day. The knives of those times were mostly solid-cast, but folding knives were also invented in the Roman Empire - a distant ancestor of our modern multi-tool and hiking knife.

Roman folding "army" knife. Spoon, fork, awl, toothpick, and God knows what else. II-III AD. Hello Swiss knives from the Roman Empire!

Such a versatile knife was indispensable for meals, and especially for the constant camping life that absolutely all soldiers led. Every Roman soldier carried such a knife with him throughout his entire service life, and perhaps later used it at home.

Please note that the blade of the knife is not made of bronze, but of iron. Iron was already known in the Bronze Age, although it was not used as massively as in subsequent centuries. At that time, it was much more expensive in terms of extraction and processing, but it gave greater strength and durability, sharpness to the blade itself.

Iron Age knives: Vikings, knights and samurai

A shot from the series "Vikings", which tells about one of the detachments of that time and shows us the culture, life, rituals and way of life of the Vikings.

Vikings (northerners, sea robbers, trouble for any merchants and conquerors, "the scourge of God" as they were also called in Europe), knights, samurai and ninja - they all existed at the same time, but at different ends of the globe.

Indian and Arabic damascus, Russian damask steel, legends about living swords and legends about heroes - all this is the age of iron and steel.

The Iron Age is one of the bloodiest in the history of both knives and humanity

Jokes aside, but those times were pretty bloody, although certainly not as bloody as our modern times with nuclear bombs and nuclear cruisers capable of destroying entire cities in a minute.

Although most of the knowledge of antiquity was lost in the Middle Ages, something was nevertheless adopted by the barbarian peoples. For example, gunsmithing associated with the processing of iron. If we talk about quality, then it is over, it has fallen significantly compared to antiquity.

The average blacksmith of that time had an idea of ​​how to forge a horseshoe or sickle for harvesting from soft iron. Such iron was not only expensive, but there were serious problems with the quality of the steel itself.

The Finnish knife is a typical representative of Scandinavian northern type knives. The Vikings had something similar.

The secrets of the weapons business were passed on only to their students.

Each master had his own secrets and passed them on only to his students. It was also dangerous to single out strongly in terms of product quality. If your knives or other weapons were much better than those of other blacksmiths, then such a master could be “invited” to the Holy Inquisition to talk about whether you dabble in black magic, because. for some reason, other God-fearing blacksmiths do not produce such high-quality items.

As you understand, at that time they burned not only beautiful women and scientists, but also good craftsmen. A good sword could cost several villages along with their inhabitants. Legends were added about swords, endowed them with intelligence, magical properties and gave their own names.

After the Crusades, the situation changed for the better. The knights, having visited the Muslim East, got access to the knowledge that was preserved and multiplied by the Arabs (after all, earlier these were Roman colonies, and the Romans respected knowledge very much), and therefore the knowledge of antiquity was not lost in those countries. The East of those times was very advanced in science, art, medicine and so on.

European knights, imprisoned from head to toe like tanks in iron armor and who covered the whole east with blood. They also made trips to Russia. Everything, as they say, to the glory of the Lord, however, they did not offend themselves either, along the way, taking with them all the treasures and valuables that they could capture.

Japanese samurai on the other side of the world were distinguished by their extreme ruthlessness and bloodthirstiness, they repeatedly conquered both Korea and China. Moreover, Korea was attacked simply because it was on the way to China. It was a sin not to rob and kill for your own pleasure.

Tanto or Japanese knife is the legacy of the samurai, which has survived to this day.

Iron Age knives were very diverse, ranging from shape, length and ending with materials. In Indonesia, a crooked knife with a sickle-shaped blade in the form of a tiger's claw appears - karambit, as well as the famous kris knife with a wavy blade in the form of a fiery tongue of flame.

A knife in Russia is an attribute of a free person

In Russia and in Europe, a knife is an attribute of a free person. A serf or Polonian has no right to have his own knife.

The knife of the Vikings and northerners is generally made with a wooden handle so that the steel does not burn the hand in the cold and does not slip in the blood when cutting game and fish. Do not forget about the Finnish hunter's and fisherman's knife, Japanese blue steel knives. All of them, too, were finally formed precisely in the Middle Ages!

Renaissance: Pirate Knife and Naval Conquest

His Majesty's Royal Musketeers in Europe.

The Renaissance era is characterized by several important points:

1. At this time, the sciences and arts are rapidly developing, the first industrial centers are emerging, where metal processing is not the work of talented individuals (as was the case before), but of entire craft and trade guilds.
Firearms upstage knives
2. The invention of firearms makes armor and shields so heavy and expensive that they are abandoned altogether. The Spanish conquistadors, armed with lances, are among the last to use armor, the last legacy of the Middle Ages. The shell is very good against melee weapons, but the heavy muskets that have replaced the small-caliber arquebuses even pierce them.
3. The renaissance period is the time of the full development of metal. The knives of this era are varied and stand out for their excellent quality.
4. The discovery of America, the development of trade and the weak control of the colonies gives rise to such a phenomenon as the maritime brotherhood. Boarding, pirates!

In battle, the Spanish pikemen cover the musketeers from the reiters (cavalry with pistols).

The queen of the seas of that time was undoubtedly Spain. Their infantry, the most disciplined and strongest infantry of the time, was very effective in combat, which eventually let Spain down. Such efficiency slowed down the development and adoption of firearms, which gave the British, French and Dutch a chance to get ahead.

Do not forget that it was the Spaniards who discovered and conquered America - with crossbows, broadswords and pikes. It was believed that in a humid and hot climate, firearms were too unreliable.

Now directly about the knives of the renaissance and marine discoveries.

The Spanish Navaja is a classic folding knife of the time.

One of the most famous examples from that time is the Spanish Navaja. She was born in the 15th century, when the authorities, due to the danger of popular riots, legally forbade ordinary people to have edged weapons with a fixed blade. Swords and other weapons had the right to wear only the upper class and the army. Sailors' knives were often folding, because just such a knife could be carried with you anywhere and it takes up little space.

An example of a modern knife that has already become a classic.

Once the production of knives becomes mass, there are so many options that it becomes a bit of a problem to make your choice. Advertising, films and the press are so intertwined in an attempt to sell and make money on sales of blades that the average buyer, not savvy in knowledge, must learn to understand the many intricacies of this direction.

• Choose a folding knife or a fixed blade?
• What brand began to take the blade?
• What size?
• What companies produce high-quality and inexpensive knives?
• What cost to expect?

We will try to answer these and other questions in subsequent articles. While I would like to give general, but no less important recommendations. The main thing you need to do in any case is to understand

1. For what purposes do you need a knife and in what conditions will you use it?
2. How much do you expect?

Formulate for yourself the answers to these seemingly simple questions (only you can answer them yourself) and 90% of the work will already be done.

Please write in the comments below - was this article helpful? What did you like and what was left undiscovered? Ask questions, we will try to help.

It was enough for Mowgli to acquire an "iron tooth", and half of his problems were solved, which as a result led him to the throne of the wolf pack. And this is no joke: the presence of a knife in a survival situation immediately increases the chances of success by at least 50%. But even if such a product is not among your things, you can make a knife yourself, and not only from metals.

The ability to build a knife depends on the available resources and the conditions of the area in which the person found himself. Almost everywhere you can find natural material for the manufacture of blades of various types.

Pay attention to rocks. Obsidian (volcanic glass), quartz, flint, shale (layered material) are suitable for making a knife. The stone is shattered against the rock by a 90-degree impact, resulting in a sharp edge that can be processed further or left as is. Such a product will allow you to cut the rope, finish off the game, build an ax, etc.

In forests, flakes from hardwoods (such as oak or coniferous trees) are used to create a cutting edge. Such wood is characterized by good strength, which increases along with the sharpness of the “blade” after firing. A wooden knife can be wrapped with a rag or other material to create a handle. The application is almost similar to stone - it’s suitable to butcher the carcass and cut the rope. It is better to have several of these items with you.

If you are near a river or other body of water, shells such as toothless ones can help. The half of such a shell has a good cutting edge.

In the sands, saxaul can play the role of a knife. It is also worth paying attention to the shells of turtles. This chitinous "body armor" consists of shale-like plates that can be used as a knife.

If you are a successful hunter, and you come across a medium-sized animal, a knife can be built from ribs by turning one of the edges on a stone. Tibia bones are also suitable for this. In addition, sometimes other natural materials can play the role of a knife. For example, a sedge leaf will allow you to quickly clean the mushroom for boiling.

Now a few words about metal. Many people get into accidents without a knife, but with enough other materials. To make a blade in this case, it is necessary to choose a pliable (soft) metal, and process it with a weighty object resembling a hammer (for example, a large nut with an ax handle threaded into the hole, etc.). Processing is carried out on a flat surface (for example, on a flat stone), where the product is given the necessary shape and the cutting edge is removed. The handle is made from wood. Of course, this is not a steel knife, but it will perform household functions tolerably.

Any piece of metal or other material can be used as a knife. For example, a bent lid of a can, half of which is wrapped in cloth, or a long piece of glass, for which a rope or rag “handle” is also made. The main thing is not to get confused and show your imagination and ingenuity.

wood knife

Every avid or novice hunter wants to have a high-quality hunting knife, which is needed not only for slaughtering and cutting animal carcasses, but also for various kinds of work in the forest. Commercially available mass-produced knives tend not to withstand heavy use, and custom-made daggers tend to be expensive. Therefore, many hunters do not use any other option than to make a hunting knife with their own hands. However, it must have the following characteristics:

• Straight handle for ease of striking when finishing. Often a sharp blade is used, located in the center (hunting dagger).
• The length of the blade, which is from 10 to 15 cm.
• The use of solid steel in the manufacture.
• Handle material: wood, bark, hard non-slip artificial materials with moderate relief. The knife should be comfortable for cutting with movements towards you and away from you, not slip in your hand.
• There are no extras or features.

Before making a hunting knife, you need to choose the right material. If it is steel, it must have the following characteristics:

• The degree of hardness on the Rockwell scale is from 20 to 67 HRC. The harder the metal, the greater its resistance to deformation.
• Impact strength
• Ductility of steel
• The stability of the metal when exposed to temperature.

The most suitable metal for the manufacture of a high-quality hunting knife is alloyed carbon steel, stamped tool steel with the addition of chromium and molybdenum, damask or Damascus steel. Damascus steel has the best quality characteristics. If it is not possible to use high-quality source material, you can use metal objects, giving them a second life: a spring, a file, an old garden tool.

hunting knife

To make a knife for hunting with your own hands from steel, you need to follow the guide:

1. The first stage is the making of a sketch of the future weapon.
2. The second stage is forging. A furnace or hearth is kindled, the steel is heated to a certain temperature. First, a shank is made to make it more convenient to hold the workpiece. Next, the shape of the tip is formed. The blade should be forged according to the outlined sketch, without changing the thickness of the steel.
3. Handle manufacturing. It can be type-setting and solid. If type-setting, the material for the handle is measured in accordance with the shank, both parts of the handle are applied to it and glued. If the handle is one-piece, a hole is made in it, then it is mounted on the shank with glue. After that, it should be carefully sanded for convenience. For the manufacture of the handle, it is best to use fiberglass impregnated with epoxy resin, or textolite. They are light and strong, unlike wood, which can be damaged when dropped, or metal, which can freeze through temperature changes and is heavy.

file knife

How to make a hunting knife from a regular file? For this you will need:

1. File
2. Vise
3. Jigsaw or scissors for metal
4. Hammer
5. Drill with a drill for metal
6. Sandpaper
7. Material for the handle (wood, leather, piece of textolite).

The first step is to harden the steel. Ideally, a home oven is suitable for this, in the furnace of which you need to throw a file so that it heats up there for 4-6 hours, and then cools down there. A blank is made for the future knife, a file shape is cut out of it. With the help of sandpaper, the shape of the knife is processed, its rough sharpening is performed. On the wooden plates, which will be the handle, holes are made for attaching to the knife by riveting. Pre-linings need to be coated with epoxy. The handle can be shaped using a jigsaw. After that, the knife is polished and polished with sandpaper, and the final sharpening: first on a grinder, then again with sandpaper. You can polish your resulting blade with felt or polish.

wood knife

Wood can be used as a cutting tool, especially in field conditions. To make a wooden knife with your own hands, you need to use chips and flakes of coniferous branches that have a sharp cutting edge or other durable and high-quality wood. The process of making a knife from wood with your own hands is simpler than steel: you need to prepare your favorite sketch on paper, which you transfer to a wooden canvas. Wooden knives are usually made in one piece. After that, the handle and blade are given the desired shape with the help of a chisel, a file, and the blade is sharpened. The finished product is varnished or fired.

Another option on how to make a wooden knife is to make it from medium thickness plywood. Similar to the works described above, a sketch is first made. Then you need to prepare the three constituent elements of the blade: the blade and two parts of the handle, consisting of a round holder and a base plate. The blade is sharpened, and the handle is processed with a file and sandpaper to remove all irregularities.

DIY stone knife

The material for the manufacture of a knife blade can be flat-shaped rocks, such as slate, flint, obsidian, quartz. Layered mineral rocks may well replace steel with their sharp cutting edge. To make a tool, you will need a stone one and a half times larger than the original product, without cracks and defects. It must be split at an angle of up to 90 degrees so that a flat surface is obtained. After reaching the desired flat shape, you can process the handle by wrapping it with improvised materials or enclosing it in wood. At home, the stone is processed with a hammer. The stone is placed on a flat hard surface covered with felt. Thus, it will not vibrate from impacts and move. The final formation of the blade can be done with pliers, breaking off piece by piece from its edge. The handle must be attached using epoxy resin, which can be wrapped with strips of leather or fabric on top. A stone knife is not afraid of corrosion, is very sharp and does not require sharpening, but a fall from a height can lead to its split.

Simple home-made piercing and cutting weapons made of stone, wood and bone can be made on your own when surviving in extreme conditions, but for this you need to have at least a little experience in making it and at least small skills.

Homemade stone knife.

The material for a homemade stone knife can serve.

Obsidian is an igneous rock composed of volcanic glass.
— Quartz is a widespread, hard, rock-forming mineral. Has many varieties.
- Flint - painted in different colors, with smooth transitions between them. Excellent material for making knife, axe, spearhead, arrowheads.
Shales are rocks. Easily split into separate, thin and sharp plates.

Making a homemade stone knife.

Rinse the selected stone (layered rock) with water. Then determine the presence of natural cracks in it and their general direction. In these directions, the stone will easily split into plates. Hit a stone with another stone so that the impact energy travels along the layer or crack. It is impossible to process a stone in other directions, that is, across cracks and layers.

The broken-off plate must be given the desired shape of the knife with the help of another stone. If the size of the plate allows, then make a handle. The size of the handle is the size of the palm. Wrap the handle with a cloth, leather strip, and the like. If the stone handle did not work out, then you need to cut it out of a tree branch. Split the end of the branch. Insert the blade into the split and securely fasten it there by wrapping the handle with wire, rope, strips of fabric, bandage, leather belt, liana.

Homemade spear.

A spear is a piercing or piercing-chopping, throwing, pole cold weapon. A spear is the same knife, only with a long, straight handle. The simplest spear is a straight stick made of hard wood sharpened from a thicker end. For hardness, the tip of the spear should be on the fire. For defense against a predator at close range, a short, strong, sharpened branch may come in handy. For greater efficiency, the spear must be equipped with a tip made of stone, bone, metal.

Homemade horn.

Rogatin is a Slavic heavy spear for hunting large game. A simple horn is a thick, pointed, long stake. The horn has no resemblance to a pitchfork, it is called so because, in ancient times, a horn from cattle served as its tip. Or a horn is a wide two-blade knife on a long shaft. Designed to repel the attack of an attacking animal (bear, tur, wild boar). The thickness is equal to the grip of the palm of the hand. The length is about two meters. Below the tip, you need to fix the cross, to keep the beast at a safe distance. When attacking an animal, the horn should be quickly rested with a blunt end on the ground, step on it with your foot and put the tip in the direction of the animal. When hit, the horn must be held with both hands.

Homemade stone axe.

The material used is the same as for the blade of a stone knife: flint, obsidian, etc. A simple way to make an ax is to beat the stone to the desired shape and form a sharp blade. Then the finished stone must be attached to a handle made of durable wood.

Homemade sling, harpoon.

Sling - this weapon is a long harpoon for spearfishing. On the one hand it has a tip to hit the fish. On the other hand, rubber or spring traction. The hitting distance is limited by the length of the harpoon.

Homemade fighter.

Drach is designed for fishing at depth from the shore or from a boat. The order of fishing: throw the drach to the bottom of the reservoir further from the shore, and preferably in a hole. Wait a little, then with a sharp jerk for the rope, pull the tackle towards you. If the fish was not hooked, repeat. Principle of operation: due to a sharp jerk, the drach randomly breaks off the bottom and catches fish on its way with hooks.

Based on the book "Survival beyond the threshold of civilization."
Nagorsky S.V.