How to make a hand drill for excavation work. Do-it-yourself drill: earthen drill, for pillars, wells, drawings, dimensions. DIY drill: other design options

A drill is a useful and necessary tool, especially if you have a summer house or a personal plot.

With its help, you can easily drill a deep hole in the ground with perfectly smooth walls. This type of hole is needed so that you can cement a pipe in it, which will serve as a support for any type of structure. The most famous examples of buildings are a canopy, gazebo, fence or grape support.

Now we will tell you how you can make a drill for your dacha with your own hands.

To do this you will need the following materials and tools.

Three pieces of metal pipes. The length of two of them should be five hundred millimeters, and the third four hundred millimeters. Moreover, they must be forty millimeters in diameter and have a wall thickness of no more than three and a half millimeters.

The lower end of the rod is sharpened at an angle of thirty degrees so that it becomes sharp.

If you want the tool to drill hard compacted soil well, you can weld a metal drill to its end with a welding machine.

Attach a handle to the other end so that it holds tightly, but at the same time can be easily removed. You can fix the handle using a sleeve. If necessary, you can machine more bushings and parts for the base than required, so that there is a reserve. Also, by using more parts of the base, you can extend the tool if the need arises to drill a deeper hole.

At the last stage, paint our product and let it dry.

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Next method

You will need



Grinder and two cutting discs. One of them should have a diameter of one hundred and fifty millimeters, and the second one one hundred millimeters.



Bolt and nut with a cross section of twenty millimeters.



A drill that has a diameter of twenty millimeters. You will also need a tip that is seventy millimeters long.



Welding machine and electrodes for it.

Take a piece of metal pipe that is five hundred millimeters long and slightly flatten either side using a vice.



You should now weld the oval side to the middle of the smaller pipe. It will serve as a handle for a drill, which you can make with your own hands.



Now weld a nut to the bottom of the long pipe.



After this, weld a bolt and a tip to the remaining pipe from different sides. This way you can connect both pipes using threads.



You cut both grinder discs into two parts.



Now you weld the parts of the hundred-millimeter disk together, and the welding angle should be forty degrees. Then you weld the resulting product to the edge of a five-hundred-millimeter pipe directly to the tip.



Weld the two parts of the other disk in the same way, only above the first. The space between them should be approximately ten centimeters. The photo below shows everything clearly.



After the work has been completed, you will have two parts that can be connected to each other.



Now you can twist both crafts that you managed to make with your own hands. As a result, you will receive a drill.



Now you can test the product. If you did everything correctly, you will be able to drill a hole of this type.



As you can see, it turned out to be deep and with almost perfectly smooth walls.

After a successful test, you need to do it yourself so that this drill will serve you as long as possible. To do this, completely clear it of lumps of earth and paint it with any color.



How to make a drill using one disk?

Materials and tools

• Metal pipe for the rack.
• Screw. This is the part of the product that will be directly used for drilling.
• Metal handle.
• Welding machine and electrodes for it.
• Lathe for turning parts.
• Sandpaper circle.
• A drill and a drill bit for metal.
• High strength steel sheet.
• Part of a gas pipe.
• Metal rod. Its diameter should be sixteen millimeters.



How to make such a drill with your own hands?

To begin, take a steel sheet and cut out circles of different diameters from it. Different sizes need to be cut in order to dig holes of different diameters. Make the size of each circle five millimeters larger than the width of the intended hole.

Drill holes exactly in the center of each workpiece. The diameter of each hole should be one millimeter larger than the prepared metal rod. It will serve as the basis for our product.

Using a lathe, turn out steel bushings in which you drill two holes. You cut threads into them. You will then be able to attach our different sized circles to the base using bolts.



Make cuts on round parts using a cutting wheel. Now the ends of the cuts need to be stretched in different directions to form a screw. The cutting edges of the edges are sharpened with an emery wheel at an angle of approximately sixty degrees. The blade is ready.

On the rod you need to make cuts three millimeters deep using a grinder and a cutting wheel.

Thus, you were able to make a drill with your own hands.

Another way

What you will need

• Grinder and metal cutting wheel for it.
• Welding.
• Clamps for welding.
• The die is the same diameter as the base.
• Die holder.
• A pair of gas keys.
• Vise mounted on a stable surface.
• Clamp for welding.
• Electric drill.

We will show you a visual diagram of the product.



Since it is very difficult to produce a worm type cutting edge, we will consider another option.

We will replace the stepped auger with two pre-rippers. They need to be welded to the base of the product. In this case, it is necessary that the diameter gradually increases. Thanks to this, you will distribute the soil resistance over the resulting steps and reduce the effort required when drilling.

In this case, the first knife will crumble the hard ground, and the second will cut the rock and feed it to the top, gradually plunging deeper. Do not forget to periodically pull out the drill and shake off the soil from it.

Now sharpen the cutting edges. Weld the pre-rippers to the base of the rod, and then attach the blades to them.

Weld a connecting bolt to the other end of the product or cut a thread.



Screw the coupling onto the thread and weld it to the base.

Now cut a piece of pipe and attach it to the drill. This will be our handle.

Now just paint the tool.

Digging holes for posts with your own hands using a shovel is a labor-intensive and time-consuming process. This may take more than one day if the decision is made to build a fence. The way out of this difficult situation is to do everything with a garden auger. The device is simple and does not require the use of energy, that is, it is a purely hand-held tool. It's easy to work with, no big effort required. As practice shows, in 15 minutes you can dig a hole in the ground with a diameter of 20 cm and a depth of one meter. That is, in just a couple of hours you can completely prepare places for installing poles.

Today, garden tool manufacturers offer a fairly wide range of hand drills. They cost differently, but if the work they do is one-time, then maybe it’s worth making it yourself. How difficult is this creative process? In principle, for any home craftsman who is familiar with simple plumbing tools and can handle electric welding, this task is quite doable. Let's look at how you can make a garden hand drill from scrap materials.

Required materials and tools

What materials will be required for this:

• Metal pipe with a diameter of 20-25 mm.
• Strip 3-5 mm thick.
• A metal sheet 3-4 mm or a disk from a circular saw, you can use a cutter.
• Bolts with M6 nuts, if a drill with removable knives will be manufactured.

Tools:

• Welding machine complete with electrodes;
• Hammer;
• Hacksaw or grinder;
• Roulette.

Attention! Pay attention to the internal diameter of the cutter; it should be slightly larger than the external diameter of the pipe by approximately 5-7 mm.

Manufacturing process

First of all, the length of the hand drill for the pillars is determined. Approximately, you can take it within 1.5 m. Therefore, a piece of this size is cut from the pipe. Pruning is done with a grinder.

A very important element is the drill tip. It serves as a guiding element. But if you come to the issue of ease of drilling soil (especially hard), then it’s worth making a small drill from the tip. Therefore, it is better to make the element itself from a metal strip 5 mm thick. How to do it right.

• A 10 cm long piece is cut from a strip 5 mm thick and 20 mm wide.
• One end of it is sharpened into a cone. This can be done with a grinder by putting an emery disc on it.
• The other end is ground on both sides so that it can easily fit into the pipe. Turning length - 5 cm.
• The tip is inserted into the pipe and electrically welded on all sides.
• You can change the design of the tip (improve it) by making a small drill out of it. To do this, you will have to heat the device and shape it into a screw, something like a corkscrew.

It is the corkscrew design that will help increase the element’s ability to bite into hard soil. Here it is important to accurately establish the direction of twist. It should coincide with the angle of inclination of the main drill knives. Typically, the tool is twisted clockwise, which means that the sharp edge should be located on the right side.

There is another option for making a drill tip with your own hands. To do this, you will have to cut the end of the pipe longitudinally to a depth of 3-5 cm. This is done with a grinder. There should be four or five cuts, with the same distance (or approximately the same) left between them. Now, using a hammer, you need to adjust the edges of the cuts to the center of the pipe diameter. After which the joints of the cut strips are scalded with electrodes, and the end of the device is sharpened with a grinder.

Now you can proceed to installing the main knives. You can make them yourself from various cutting working tools. The cutters and disks from the circular saw were listed above. In principle, this list is longer. If cutting discs were not found, then knives can be made from sheet steel 3-4 mm thick. You simply cut a circle out of a sheet of the required diameter; by the way, this can be done with either a grinder or electric welding. Then a hole is made in it with a diameter slightly larger than the diameter of the pipe. And after that the steel circle is cut into two even halves.

You can first cut the circle in half, and then cut semicircles on the two halves for the pipe. The important thing here is to finish the process by sanding down all the raw edges. The outer edges of the half-discs are sharpened to a certain sharpness. After which both knives are welded to the pipe. There are a couple of recommendations here:

• The distance from the place where the tip is welded to the place where the knives are installed is 10-15 cm.
• The knives themselves are installed one above the other, the distance between them is 5 cm, the installation angle is approximately 20°.
• The discs must be welded so that their working edge is directed downward, that is, when drilling, the drill should easily crash into the ground.

All that remains is to weld a small piece of pipe perpendicular to the drill pipe. This will be the handle. Its length is 50 cm, but here everyone chooses for themselves. To prevent the effort of human hands from breaking the weld between two pipes, it is necessary to weld gussets cut from a metal sheet on both sides.

The design of the drill can be modified, or rather, improved. Sometimes it becomes necessary to dig holes for posts longer than 1.5 m. Therefore, it is recommended to add a couple of additional pipes to the tool, which will increase the length of the tool itself. How to make these elements correctly.

• Firstly: it is necessary to modify the drill handle, making it removable. Therefore, it is not welded tightly, but made in the shape of the letter “T”. In this case, the pipe section that will be inserted into the drill barrel must have a diameter less than the diameter of the barrel. And at the same time, the handle should fit into the barrel unhindered, but not so much as to reduce the strength characteristics of the tool itself.
• Secondly: you need to make two through holes in the handle barrel, located perpendicular to each other. The distance between them is 5-6 cm.
• Thirdly: exactly the same holes with a diameter of 7 mm must be made on the drill barrel at the entry point of the handle. It turns out that both elements will be connected with two M6 bolts.
• Fourth: several pipes 1.5 m long are prepared, corresponding to the diameter of the handle barrel, in which the same holes are drilled at both ends. Locations are the same as on the handle barrel.

To lengthen a hand drill two or three times, you need to unscrew the fastening bolts, remove the handle, insert the pipe into the pipe, secure them with bolts, install a handle on the free end of the extended drill, attaching it with two bolts.

As for the diameter of the holes for the posts, this can also be changed if the knives are made removable. To do this, at the place where the knives are installed, it is necessary to weld two shelves cut from a strip 5 mm thick. You can make the shelf in the form of a circle with an internal hole for the tool pipe. A circle with a diameter of 8-10 cm is cut out of a sheet of iron, a hole is made in it for the pipe, and this element is installed and welded to the trunk. You must first make four through holes in it, two on each side. Removable knives will be attached to them.

Attention! Removable knives are fastened with M6 bolts. Installation of bolts should be done with the thread upward towards the handle. They simply in this position will not interfere with the process of drilling the soil.

You can increase the efficiency of the drill if you install an additional element between the knives and the tip. This is, in fact, a flat cutter that will loosen the soil before inserting the knives and center the drill itself. A small addition will make it possible to increase the drilling speed, especially in hard soils and in places where there are a large number of plant roots in the ground.

It’s not difficult to make such a flat cutter with your own hands. To do this, you will need a plate 4-5 mm thick and 30 mm wide. Two pieces of 80 mm length are cut out of it. They are welded opposite each other to the drill barrel. The right edge of the additional knives becomes sharper. To prevent heavy loads from breaking the flat cutter, you can add two metal gussets to their fastening.

In principle, this is how you can make a hand drill with your own hands for digging holes for pillars. Let's face it, it won't take very long to make this tool, about two hours, no more.

If your country house does not have water supply, and there are no water supply networks nearby, then the only option is to drill a well or build a well. If the depth of the aquifers is very large and the soil is too hard, then you cannot do without a team of drillers with equipment. But with shallow water layers and relatively soft soil, you can cope on your own. To make a shallow well in soft soil, you can use a homemade drill. In this case, the maximum depth of the well cannot exceed 20 m. There are several types of drills. We'll look at how to make them yourself. And detailed video instructions for self-drilling will help you better understand the process.

The construction of an expensive artesian well is not always justified for water supply to a small country house or cottage. For seasonal water supply to a small private house or cottage, making a shallow sand well or well will be quite sufficient.

Among the main conditions for manual drilling are:

• occurrence of groundwater at shallow depths (up to 20 m);
• the soil should not contain rocks, that is, a hand drill can only cope with sandy and clayey soils.

To make a drill for a well with your own hands, you need to have at least some experience in plumbing. Using drawings and photos from the Internet, you can make three types of homemade drills yourself.

To drill a well yourself or search for water for a well, two types of drilling are suitable:

• shock-rope;
• rotational.

The first type of work is convenient because it does not require the use of complex special devices. It is enough to make a simple drilling rig from scrap materials. Moreover, you can drill a well alone without the help of assistants.

The essence of the percussion-rope drilling method is as follows:

1. To make a well, a heavy pipe with a pointed end is dropped into it from a considerable height. She is tied with a rope to the frame.
2. Under the weight of the pipe, part of the soil is separated and falls inside the device.
3. Then the drill is brought to the surface again and dropped into the well from a height again.
4. During drilling, the wellbore gradually deepens and soil accumulates in the impact device.
5. After making several blows, the pipe must be removed to the surface using a winch and cleared of accumulated soil. To do this, the product is pulled away from the well and cleaned with blows of a heavy hammer.
6. They continue to drill the well in this manner until they reach the aquifer upon reaching the required depth.

Rotary drilling involves the use of a drill that cuts into the ground and lifts up the rock as it rotates. To drill this way, you will need two people. They should stand on the sides of the drill rod and twist it using a metal pipe or crowbar.

This drilling method allows you to quickly make a well without the use of special equipment. To work, you will only need a drill of the required diameter, a rod to increase the length as you go deeper into the ground, pipes or crowbars for the wrench.

For rotary drilling, one of two types of drill is usually used: spiral, spoon. We will look at how to make them later in our article. You can learn how to properly drill a well using a hand drill from the video at the end of the article.

Making a percussion drill

We will describe how to make a percussion drill for a well and build a simple drilling rig. To do this, you should follow our instructions:

1. First, you need to make a tripod over the drilling site. Usually a structure 2-3 meters high is sufficient.
2. At its top we attach a rope block.
3. To lift the drill, we will use an electric or manual winch. We attach it to one of the tripod supports.
4. To make a handheld impact drill you will need a pipe with thick walls. In this case, its diameter must be equal to the width of the wellbore.
5. The upper end of the pipe is welded with a thick strip of metal. In this case, in the center of this plug it is necessary to make a hole equal to the thickness of the rope used to hang the pipe.
6. The bottom edge of the pipe is sharpened. In this case, you can simply sharpen the pipe wall, or you can make a gear cut. To increase the strength of the impact part of the structure, it is better to harden the sharpening in a muffle furnace.
7. To make it easier to remove soil accumulated during the drilling process from the device, its upper part is equipped with radial holes or slots.

Advice: if you have the opportunity to install a powerful winch, then to increase drilling efficiency, the pipe can be additionally weighted. To do this, removable steel weights are installed on its upper part.

Manufacturing of a spiral (screw) drill

The second name for a spiral drill is auger. Such a drill for a well with your own hands is made from a pipe with thick walls that serves as a vertical rod, a carbide cutting tool in its lower part and spiral turns from the bottom along the rod. Hardened steel is used to make coils.

To drill a well, you need to rotate the device. In this case, the cutting edge will cut through the rock, and the coils of hardened steel will begin to push the soil upward. Thus, the pushed soil will create additional pressure in the direction of drilling. Thus, during operation, rock will accumulate between turns. To increase the efficiency of drilling, the drill must periodically remove the holes and clear the coils of accumulated soil.

The simplest version of such a drill is a disk drill. Before making a drill for a well, you need to prepare the necessary materials:

• pipe with thick walls;
• steel disk 0.4-0.6 cm thick (the diameter of the disk must be equal to the required width of the well).

We carry out work on the manufacture of a disk drill in the following order:

1. The lower part of the prepared pipe needs to be sharpened. Sometimes a sharpened tip is welded in instead. It is better to make it from hardened steel.
2. The steel disc is sawn into two halves. The outer side of the halves is sharpened evenly or a sharp serrated cut is made.
3. Both halves of the metal disk are welded to the vertical rod. In this case, it is necessary to retreat 12.5 cm from the sharpened tip. Two parts of the disk are welded on different sides. In this case, in relation to the longitudinal axis they should be located at an angle of 70 degrees. As a result, the angle between the halves of the disk will be 40 degrees. It’s better if you look at the design of the spiral drill in the photo on the net. This will make it clearer to you.
4. At the upper end of the rod there is a threaded coupling. It will allow you to increase the length of the rod as the well is drilled.

Tip: to make an auger, you can take not an ordinary steel disk, but a circular saw disk cut into two parts. The main thing is to choose the right diameter so that it matches the required width of the well.

A more difficult option for doing it yourself is a screw drill. It is made from strips of steel that are heated and twisted. Moreover, the pitch of adjacent turns should be equal to the width of the blade.

Making a spoon drill

The spoon drill is ideal for working in soft rocks. In this case, soil loosening occurs not only in the bottom, but also in the side parts of the device. The selected soil is accumulated inside a cylindrical body. When you drill a well with such a device, you will need to periodically remove it and clean it of accumulated rock.

The spoon drill is made from a pipe with thick walls. Moreover, its diameter is selected according to the width of the well. In addition, for manufacturing you will need a welding machine and a set of plumbing tools. We carry out work on making a drill in the following order:

1. Make a longitudinal cut in the pipe. The drawing shows very clearly how the hole should be positioned.
2. Next, using a crowbar and a heavy hammer, the pipe is given the desired profile (spoon).
3. The bottom and side edges of the pipe are sharpened.
4. A drill is welded to the bottom of the structure along the central axis. It should be thick enough with a diameter of at least 1.8-3.6 cm.
5. A rod is welded to the upper end of the pipe. In this case, its axis should be shifted to the side relative to the axis of the pipe by 1-1.5 cm.
6. It is recommended to harden all cutting edges of the drill.

Tip: the dimensions of the longitudinal cutout in the pipe are selected depending on the composition of the soil. The drier and looser the soil, the smaller the size of the cut.

If you need a very long drill rod, you can do it in several ways:

• A good option is to use threaded couplings to connect the rods. So, inside each pipe section there is a thread corresponding to the diameter of the pipes. Then a threaded coupling of the required length is made. To protect against spontaneous separation of elements, a cotter pin retainer is made.
• For small pipe diameters, you can use a bolt and nut welded to the ends of the sections. However, this method is not very reliable due to the fragility of the welded joint.
• The simplest and most effective method is to cut a coupling from a piece of pipe with a larger diameter than the dimensions of the rod. The coupling is then welded to the end of one section, and the other section is loosely inserted into the coupling and secured with a bolt and nut inserted across it.

Making one-piece drill pipe that is too long makes the job more difficult. It is better to make a detachable connection. To do this, it is enough to use sections 100-120 cm long. This way it will be easy for you to select the required length of the drill pipe and increase it as the work progresses.

• To make drilling a well easier with hand tools, you can use a bailer. It makes it easier to lift the soil to the surface, since the rock is collected in a special container.
• If a hand drill cannot be lifted to the surface, you can build a lever on a raised platform from barrels or logs. Thus, the drilling process will not only be facilitated, but also accelerated, because the volume of soil lifted up can be increased.
• To reduce the labor intensity of work and speed up the drilling process, special devices can be used to twist the drill.
• Homemade drills can be useful to you after the construction of the well. For example, you can use them to dig a foundation for fence posts, make pile foundations, and plant plants.

You can learn how to drill a well manually from the following video:

Reading time ≈ 10 minutes

Residents of the private sector are very familiar with situations when something needs to be built or installed, but the base of such a structure will be in the ground. In this regard, many are wondering how to make a drill for drilling holes for poles (piles) with their own hands, using materials that may be available in the household. In addition, without excessive modesty, it can be argued that in some cases, self-made instruments exceed the quality of factory products. The thing is that a standard is produced at the factory, and at home you can adapt such a device to specific needs, taking into account the condition of the soil.

Homemade hand garden auger

Dependence of design on purpose

For everyday needs, you can make a hand drill for various purposes with your own hands, although in any case, such a tool is intended for drilling holes. But at the same time they are distinguished by appearance and performance characteristics, these are:

• ordinary garden auger;
• auger garden auger;
• drill for TISE piles (Technology of Individual Construction and Ecology).

To assemble such a tool, you will definitely need a welding machine operating on alternating or direct current.

Common garden auger

Earth garden auger

To make an ordinary garden auger, which is most often used for not very deep holes, you need a powerful rod, made of solid (scrap) or hollow pipe profile. In addition, you will need semicircular cutting discs welded at a certain angle of attack (it is best if it is alloy steel). Using this tool, holes are made for planting plants (usually seedlings of shrubs or trees), as well as holes for installing fence posts or other light architectural structures.

Homemade auger hand drill

The word “auger” from German (“Schnecke”) is translated as “snail” and this perfectly characterizes the configuration of the cutting device. The blades are arranged like a right-hand thread with a large pitch, which allows you to pull the drill out of the ground much less frequently, since the soil rises to the full height of the blades without interfering with drilling. The functionality of such a tool is practically no different from the device described above, but labor productivity in this case almost doubles. If, for example, you build a fence around the perimeter of the site, you will have to install a lot of supports, so speed will only bring benefits. Certainly. It is better to use an automated drive for the auger.

Homemade drill for TISE piles

This tool is used to make wells with expansion at the bottom

The TISE pile drill fully complies with the technology of individual construction and the ecology of work, and in domestic conditions, as a rule, it is used for pouring pillars with an expanded base under. Its uniqueness lies in the fact that near the cutting blades there is a folding blade (knife), with the help of which an expansion is formed. If we talk about labor productivity when pouring such foundations, then such tools are simply irreplaceable.

Making an ordinary garden auger at home

Below we will look at how you can make such a design at home, provided that you have a workshop (for many car enthusiasts this is a garage).

Components

The constituent elements from which the entire assembly is made

List of elements:

• The cutting parts are two semicircles made of alloy steel, with sharpened edges. Depending on the purpose of the tool, its diameter is also determined. In some cases, semicircular blades are fixed with a bolted connection so that they can be replaced with a different diameter.
• The rod is a round or square pipe profile, although sometimes such a part is made from scrap, but this significantly increases the mass and complicates the work process. The length of the rod depends on the need, but most often it is made for pits 50-80 cm long and up to 1.5 m (if this parameter is reduced, you have to constantly work in a bent position). But if one and a half meters is not enough (the depth of the hole is 80-100 cm or more), then it is better to make a prefabricated rod with extendable rods (they can be joined using a nipple).
• The crossbar for the handle is welded to the top of the rod in the shape of the letter T, where the optimal length of the crossbar is 25-30 cm in each direction. If you make these levers shorter, then scrolling will be much harder.
• The tip is made sharp; it serves as a drill, which centers the blades in relation to the surface of the earth. That is, they will not move to the side, since they are a single unit with the drill.

What materials will you need?

Square pipe profile

To make a rod, as mentioned above, a pipe profile with a square or round cross-section is suitable. If the wall of such a profile has a thickness of 2-2.5 mm, then a section of 20×20 mm or ø20 mm is suitable, but if the walls are thinner, then the section should be increased to 30×30 or 35×35 mm, ø30-35 mm. If during work there may be a need to screw on an additional rod, then only a round pipe profile is suitable for the rod.

Flat tip in the form of a lance with central and side sharpening

A sharp tip must be welded to the end of the rod, which can be made from a piece of a thick drill with a pobedit tip - they are used for drilling concrete with a hammer drill. But you can also make such a point from thick reinforcement or a piece of steel, sharpening it in the form of a flat peak, as in the top photo.

The cutting part is made from a hand-held circular saw blade

The most crucial moment is the manufacture of cutting blades and they can be made from:

1. sheet steel 3-4 mm thick;
2. saw blade from a grinder (diamond) or a hand-held circular saw.

In this case, it is most convenient to use discs from a diamond-coated grinder, designed for cutting concrete, or from a hand-held circular saw. When the diamond coating is applied, a thin strip of no more than 1 mm remains around the circumference and it is easy to grind it off, making the edges sharp, and the toothed disk from the circular saw can only be cut in half.

For reference. The internal diameter of the disk or mounting hole is standard 22.5 mm.

And a few more words about the handle - it should be made of a round pipe and in no case should you put any plastic on it, much less wrap it with electrical tape.

Method of fastening knives

Removable bolt-on blades

If it is planned to drill wells of different diameters, then the blades on the tool can be made of a removable type. For this purpose, two shelves are welded to the rod and knives are bolted to them, as shown in the top photo.

The optimal angle of attack is 30-40⁰

If you are not going to change the diameter of the blades, then the best option is ø120 mm, and for this, a saw or trimming disc ø125 mm (5 mm width of diamond coating and it will no longer be) is ideal, which needs to be cut into two semicircles. The ø22.5 mm seat will have to be adjusted to the rod, cutting off the excess by electric welding. For soft soils, the angle of attack is usually 30⁰, and sometimes even 40⁰, but for hard soils it is better to lower it to 22-25⁰.

Components of a garden auger: 1) rod with a point, 2) cutting discs, 3) handle for rotation

Here is a drawing of a homemade garden auger with ø120 mm blades (the diameter of a used cutting disc for diamond-coated concrete). Below is a video on how to make such a tool:

Video: Do-it-yourself garden drill in a home workshop

Auger drill

Schematic diagram of the manufacture of an auger drill

Now let's figure out how to make an auger drill for drilling holes for pillars with our own hands. Such a tool does not have to be removed from the hole every 5-10 cm of passage, since the soil dump moves during rotation to the upper blades of the auger. This significantly speeds up the process, but working with it requires a lot of physical strength, so in most cases such installations are used in conjunction with an automated drive.

All disks are clamped in a vice and the same sector is cut out for rotation

Now the most crucial moment: you need to cut out a trapezoidal sector from all the disks folded together, although these inclined ones will intersect in the center, forming an acute angle. The bottom line is that when turning each upper disk, the left edge of the cut sector should coincide with the right edge of the lower one. It is, of course, better to first do such things on paper and if everything matches, transfer the markings for cutting to the metal. The number of screw turns will correspond to the number of disks.

Attention! Do not lose sight of the fact that for docking the lower disk uses the right side of the sector, and the upper one the left. If you do the opposite, you will have to drill counterclockwise.

Now the welding work begins:

1. place a disk on a plane, and place another one on top of it, but in such a way as to overlap the cut sector, that is, the left edge of the upper one should adjoin the right edge of the lower one;
2. this joint is welded by electric welding and the next disc is placed on top, acting on the same principle;
3. This is how all the disks are joined and welded, making a compressed spring out of them.

The compressed spring is stretched using a winch

Upon completion of the welding work, this homemade spring needs to be stretched to form a screw. To do this, the assembly is put on a rod and the lower disk is welded at the desired angle, for example, 30⁰, and something like a ring can be welded to the upper disk so that it hooks onto the winch hook. The rod is fixed on the floor (figure out how to do this yourself - circumstances vary) and the spring is stretched with a winch, after which the upper disk is welded. The rod is released and the entire structure is scalded in a spiral.

Video: Making an auger drill

Drill for TISE piles

Operating principle of the TISE pile drill

The drawing above shows the principle of operation of the TISE pile drill: first it makes a shaft of the required diameter, and at the bottom the well is expanded using a folding knife. But perhaps I will disappoint you, since in order to make such a design at home, you need, at a minimum, a workshop with tools and professional mechanic skills. To consider such an assembly, you will have to post a separate article, even a small one, but here we will limit ourselves to showing a video on self-assembly of a TISE drill:

Video: Homemade drill for TISE piles at home

Conclusion

From this material you learned how to make a drill for drilling holes for poles with your own hands. You won’t use a drill for TISE piles to install a fence or build a foundation, so for a house an ordinary drill or, if you have something to make a drive from, an auger drill is quite enough.

Do you want to install a water supply system on your property by drilling a well yourself? Agree that the presence of water supply and sewerage significantly increases the level of comfort when living in a private house or country house. But calling specialists to install a well or borehole will not be cheap.

Have you decided to make a drill for a well with your own hands and are looking for a simple homemade option? We will help you in this matter - the article contains useful information about the process of making a homemade spiral drill and a spoon drill.

A list of necessary tools and materials is provided, thematic photos and useful video recommendations for constructing a homemade drill are selected.

Our detailed instructions, equipped with step-by-step photos, will help even a beginner make a simple and uncomplicated drill.

The length of the string of rods attached to the drill will be increased gradually as the drill moves deeper.

There are several options for connecting rods into a long drill rod, these are:

• Threaded coupling. To create such a connection, a thread is cut inside each section that will correspond to the dimensions of the connecting element. The threaded coupling is made to the required length. All we have to do is exclude the possibility of spontaneous unscrewing of the connection. For these purposes, a cotter pin retainer is used. This method is simple and reliable.
• Nut and bolt. They are welded to rods made of small diameter pipes. This is a fairly simple, but not reliable option. You will have to weld on a thin-walled pipe, on which such a connection is unlikely to be strong. In addition, in order to fix such a threaded connection of the rods, additional efforts will have to be made.
• Welded couplings. They are cut from a pipe whose diameter is larger than that of the rod. Then tightly weld the coupling to the pipe at one end of the section. Insert the next section freely into the same coupling on the other side. Now you need to secure the sections so that they do not rotate. To do this, you can insert a bolt across the pipe and secure it with a nut on the other side.

To make a drill for a deep well with your own hands, several rods are connected. Moreover, it is better if their connection is extremely simple. After all, during the drilling process, the tool will rise to the surface so that it is freed from the ground.

Each rise of the drill is accompanied by its division into its component parts, and each subsequent descent is accompanied by a new assembly and extension.