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How to make a homemade earth drill (pit drill, earth drill). Electric earth drill - the myth about electric garden drills has been debunked Do-it-yourself electric drill for earthworks

If, when carrying out excavation work on a site, you need to dig several holes-holes for poles or racks, then a garden drill of the Fiskars Quikdrill model will help to significantly speed up this process.

The electric manual auger hole drill Bison, Tornado or Fiskars can significantly facilitate the entire process of earthworks. In addition, the Fiskars Quikdrill model garden auger can drill holes in the soil to depths such as 100, 200, 300 or 500 mm.

An electric manual auger hole drill Bison, Tornado or Fiskars can form a hole in the soil for trees and shrubs.

1 Purpose and characteristics

Currently, drilling operations are carried out everywhere due to the ongoing and developing suburban construction. In most cases, units such as the Zubr, Tornado or Fiskars earth auger drill are used in drilling work in dachas and suburban areas.

It is worth noting that the garden drill of the Fiskars Quikdrill model and its analogues such as Bison, Tornado and Fiskars are capable of creating holes in the ground for:

Installation of fence posts;
Pile mounts;
Laying a pile foundation with a depth of 100, 200, 300 or 500 mm;
Creation of shallow trenches and technical holes;
Planting shrubs, seedlings and small trees.

A self-made screw hole drill is presented in the form electrical device, which belongs to the category of cutting tools.

Such common units as Zubr, Tornado and Fiskars have excellent reviews from users and are capable of making holes with depths of 100, 200, 300 or 500 mm in materials such as:

Stone;
Concrete;
Brick;
Pebble-rich soil.

Structurally, a hand-made earth auger homemade hole drill is similar to a conventional drill, equipped with a shank and a spiral. Thanks to the presence of such a spiral, units such as Zubr, Tornado and Fiskars are capable of not only creating holes with a depth of 100, 200, 300 or 500 mm, but also removing waste material from the drilling zone.

The manual earth auger auger is made of materials with excellent strength characteristics. Its cutting part is made using an alloy with a high degree of hardness.

The presented auger manual hole drill Tornado, Zubr, Fiskars, and similar analogs have several configurations for sharpening the cutting edge.

A distinctive feature of such portable devices, like a manual pit drill Tornado, Bison or Fiskars, is the presence of an electric motor equipped with two comfortable handles.

The electric motor is equipped with a special clamping mechanism in order to fix the drilling tool - the auger. The auger in such units as a manual pit drill Tornado, Bison or Fiskars is presented in the form of a rod with a continuous helical surface along the entire longitudinal axis.

2 What are the features of an electric garden auger?

An electric drill is presented in the form of an electric downhole machine, which is equipped with an electric motor that is mounted in the pipe casing of the device.

The housing ensures the movement of the bit drive during work. A well created using such a unit can last for a long time.

Reviews about the presented unit are mostly good. All modern products are equipped with an asynchronous oil-filled motor equipped with a squirrel-cage rotor.

Thus, the main details electric drill is an asynchronous oil-filled motor and a spindle, which is located on rolling bearings.

Inside the tube housing there is a package of magnetic conductive steel of the stator mechanism. This compartment is divided using non-magnetic steel packages in those places where the radial ball bearings of the rotor are located.

All rotor packages are covered with a layer of aluminum winding and are included in the hollow rotary shaft of the motor. The inside of the motor cavity is filled with a special type of dry insulating oil.

In addition, the internal cavity of the engine is hermetically sealed with upper and lower oil seals. When the system starts, the seals are filled with oil.

In order to compensate for oil leaks and to maintain constant internal pressure in the engine, so-called lubricators and three oil seals are located in the upper part of the engine.

Each of the glands is equipped with a cable input, which is supplied from the edge of the contact rod, and, passing through the glands, is connected to the stator winding.

In order for the weight of the rotating shaft to be absorbed by the entire mechanism, its lower part is equipped with an installed thrust ball bearing.

A spindle is attached to the bottom cover of the motor. It is equipped with a multi-row axial support, which moves thanks to the presence of ball bearings.

Another shaft moves in the housing, which is hollow inside, and its alignment is carried out using a series of ball bearings. There is a connection between the spindle shaft and the main motor shaft.

It is implemented using a gear-shaped coupling. In the place where the shafts are connected there is a hinge-type seal.

It provides a high degree of waterproofing against the ingress of flushing working fluid. All axial loads to which the rock-cutting impact tool (auger) is exposed are completely absorbed by the spindle body and are not transferred to the motor shaft.

All types of asynchronous motors that are used in electric drills have a fairly limited operating speed range.

The change in this parameter directly depends on the speed at which the rotor is able to slide relative to the stator field. Thus, the value of the motor torque directly depends on the square of the input voltage.

When the voltage decreases, there is a significant reduction in torque. Based on this, the drop in voltage during short-term types of loads must be compensated by increasing the voltage at the input to the motor by 10-15% of the nominal level.

Depending on the characteristics and type of engine, the voltage at the terminals of the electric drill can be from 1000 to 1200 V. At the moment when the engine starts, there is a significant reduction in torque - this is the so-called failure zone.

This parameter is then restored after the unit returns to normal operating speed. Due to the fact that the engine is started with a focus on a low degree of load, the flywheel moment of all parts involved in rotation is very small.

However, even if the torque is greatly reduced, the engine is able to accelerate the speed of the working shaft in a matter of seconds.

By the way, the efficiency of such an engine, when testing the rated load, can be about 70%. This is explained by the low level of mechanical losses during spindle movement on fixed support points.

Electricity is supplied to the drilling motor using a sectioned cable. It is placed in the internal channel of the drill string.

The current is supplied using a three- or two-core cable. Instead of a third wire, a drill string may act.

It is worth keeping in mind that the cabling of the electrical garden borer is generally considered one of the weakest nodes of the presented system.

The voltage may drop due to broken cable sections and their further contamination. Disturbances in the operation of the electrical circuit are observed when contacts made with copper break down in the places where they are connected to the coupling.

It is worth noting that a portable hand-held garden auger has a number of advantages, which are expressed in:

Facilitation of conditions during drill string operation;
Reduced wear located in the well;
Minimizing power consumption at idle.

In addition, the operating mode of the unit has no bearing on the fluid flow rate. Therefore, the device is most effective when the hole in the ground is completely cleared of the accumulated sludge there.

In addition, the operating cycle of the device does not depend on the quality and characteristics of the solution used during drilling. This property implies the use of the product when working with weighted solutions.

The communication channel for monitoring the operation of the unit is presented in the form of a conductor. This allows, in some modifications of the device, drilling operations to be carried out remotely.

Due to the fact that a manual electric drill is presented in the form of an oil-filled engine, all its parts work in an environment that is isolated from the ingress of sludge.

Based on this, the rotary elements of the screw are least susceptible to harmful corrosive and abrasive processes.

Among the disadvantages of such a device, one can highlight the rather high cost compared to mechanical analogues. The likelihood of damage and distortion when stuck in the wellbore and the low degree of reliability of the cable connection.

Sergey, 45 years old, Samara:

I decided to arrange my dacha plot and put up a mesh fence. In order to make small holes for digging posts, I used a hand-held electric drill, which I borrowed from a neighbor.
He completed all the work in the shortest possible time, without spending much effort. An excellent unit. I read the reviews - now many people have one in their household, so I decided to buy it myself. I advise everyone!

Vladimir, 53 years old, Voronezh:

The modern market is saturated with various kinds of construction tools and devices. Take, for example, a hole drill: today you can easily find a device whose cost is quite affordable, and the declared characteristics completely satisfy the buyer. It would seem that there is nothing simpler: buy and use. But you shouldn’t always rush into such an acquisition. The fact is that budget equipment in practice does not always meet the needs of the buyer, or is even not at all capable of performing the functions assigned to it: the drill is in no hurry to enter the ground even with strong pressure, engine speed drops due to heavy load, etc.

Buy a powerful and expensive device for a small volume of construction or gardening work– not always advisable. Renting is also not a cheap pleasure. Therefore, craftsmen strive to use the equipment they already have at their disposal to create compact drilling rigs.

Earth drill from a drill

In most cases, a mechanized hole drill is a power unit (a powerful drill or a gasoline engine), which is connected to a conventional hand drill using a simple mechanical drive. You can make a drill yourself.

DIY drill bit.

You can find a ready-made serial drill for sale.

skyle User FORUMHOUSE

Many people say that they simply bought such an auger and secured it to it a powerful low-speed electric drill.

Engine characteristics

Recommendations regarding the number of revolutions of the power plant and its other characteristics deserve separate consideration. Let's start with the fact that the power plant can be connected to the drill either directly or through an additional gearbox. Everyone determines the need to use a gearbox for themselves. As practice shows, if the rated power of the drill is 2 kW, then there is no need to use a gearbox (especially if the installation does not have a special frame and you have to hold it with your hands during operation).

jumper_at_home User FORUMHOUSE

At first, a gearbox was planned, but after field tests with the “drill - auger” scheme, it was decided to abandon the gearbox. The moment is such that it does not notice the operator at all (if you drill with your hands).

The power indicator - 2 kW - was not taken by chance. These are the drills most often used by our forum participants in the manufacture of mechanized hole drills.

Tri.Dr.E User FORUMHOUSE

Have construction experience columnar foundation with a grillage. I used a 2 kW drill and an auger designed for a hole diameter of 30 cm (the diameter of the drill is somewhere around 29.3 cm). For deeper drilling, I used an extension cord from a regular steel pipe. The soil in my place is not sugar: earth, then clay, then some kind of lens with beach sand, then again clay with sand, and then blue clay (at a depth - 1.8 - 1.9 m).

In order to make holes of the required depth in the ground, the user had to build a compact drilling rig (with a frame, winch and other accessories).

But now we are talking about the power of the power unit, and from the description presented it is easy to understand what a drill with a rated power of 2 kW (even without a gearbox) is capable of.

A little theory

If we consider the relationship between the power of a drill (or gasoline engine) and the torque on the drill shaft, it is determined by the following relationship:

N – power (W).
M – torque (Nm).
n – number of revolutions (rpm).
9549 – special coefficient.

Theoretically, the torque on the working shaft of such an installation at a speed of 500 rpm should be 38 Nm (64 Nm at 300 rpm). But to calculate torque, it is always necessary to take into account losses, which are determined by the efficiency of the device. The thing is that most power tool manufacturers indicate only the power consumption of their devices, and the output power (on the working shaft) is 1/3...1/4 less than the consumed power. Accordingly, the torque is less. A 2 kW drill at 300 rpm will create a torque on the spindle that is not 64 Nm, but approximately 48 Nm.

When choosing a power unit for your pit drill, you can consider devices with a power consumption of less than 2 kW. But then you will have to seriously think about introducing a reduction gear into the design of the drilling rig.

uvl77 User FORUMHOUSE

Regarding the gearbox: a gearbox is good because it allows you to proportionally change the speed and torque without changing the power. That is, by reducing the number of revolutions through the gearbox, we proportionally increase the torque. And power in this case remains a generalized characteristic (constant).

Based on the torque created by a 2 kW drill (without an additional gearbox), you can select suitable device for your pit drill. In other words, knowing the power of the drill, the number of revolutions of its spindle and the gear ratio of the gearbox used, you can calculate the value of torque that you will receive at the output of the power plant. But it should be understood that the speed of the drill cannot be greatly reduced.

uvl77 User FORUMHOUSE

The optimal speed during drilling is from 60...100 to 200...300 rpm. Modedepends on the type of soil, drilling method, type of drill bits, well diameter, etc.

The above quote mentions drilling methods. There are two of them: continuous drilling and drilling with constant soil removal. For continuous drilling, the rig must provide high torque.

During drilling with constant soil removal, an auger, drilled into the soil to a certain depth, rises to the surface. In this case, the loosened soil located on the working blades of the auger is also removed out.

The operation is repeated until the drilling rig reaches the specified depth. The process is labor-intensive, but does not require large torques.

As we have already said, when choosing a power unit for a drilling rig, it is better to focus on a low-speed drill with a power of 2 kW (that is, the torque that it transmits to the working shaft). Judging by the numerous reviews from FORUMHOUSE users, these devices have proven themselves to be quite good. The power of gasoline engines must also correspond to the specified indicator.

Gearboxes for pit drills and their varieties

The assembly of any mechanism in most cases is characterized by the use of improvised materials, devices and components that have been lying idle for a long time because there was no worthy use for them. The experience of our users suggests that a mechanical reduction gear can be made from a wide variety of parts: from spare parts for an old moped, from a simple chain or worm gear, from a suitable gearbox of unknown origin, accidentally lying around on an old shelf in the garage, etc.

When equipping a drilling rig with a gearbox, the main thing is not to forget about the optimal speed of the drill and the fact that it is necessary to ensure sufficient torque on its working shaft.

Mechanic020 User FORUMHOUSE

I had a broken moped lying around, and I took the rear gearbox from it. I sawed off the gearbox with a turbine (the back part of the aluminum housing with the gearbox), then secured it through a gear transmission This gearbox is powered by an electric motor from an old electric saw with a power of 2 kW. The engine with gearbox gave a ratio of 13:1 (the output turned out to be approximately 300 rpm).

About the chain drive: having a certain amount of ingenuity, you can, without making much effort, build a completely reliable hole drill with sufficient power. The presented idea is not new, and many people successfully apply it in practice (if necessary).

jumper_at_home User FORUMHOUSE

There is no gearbox, although it was planned to make it from the VAZ 2101 timing chain and its sprockets. The gear ratio is 1:2. Tests have shown that it is not needed. Maybe use it on very hard soils, but we don’t have those.

The use of the above mechanisms requires a non-standard approach to assembling the drilling rig. If you have a small serial gearbox (or the opportunity to purchase it inexpensively), then the task becomes much easier. Here, for example, is a photo of a gearbox posted by user melomandk.

Melomandk User FORUMHOUSE

I found such a gearbox. But the gear ratio is large - equal to or even slightly more than 1:40. Dimensions (according to the body) – about 15 x 15 cm.

As it turned out, the device has quite suitable parameters.

di griz User FORUMHOUSE

My hole drill is based on just such a gearbox. So far I'm very pleased. The engine is an angle grinder (3000 output rpm). The power of the grinder is 2 kW. I didn’t try to drill into clay, but I did take a hole drill into hard compacted earth with inclusions of crushed stone and rotten roots. The diameter of the auger is 160 mm, the knives on it are homemade - made from springs.

bed

If there is a lot of work, if you need to drill deeply, and it is very difficult to hold the installation in your hands, then the existing equipment can be secured in a special frame.

The design of homemade frames, as well as that of mechanical reduction gears, can be very diverse. But there are design elements that are used in the vast majority of cases.

Lifting mechanism

A chain drive installed inside the central pillar can be used as a lifting mechanism. Raising and lowering is carried out either using an additional electric motor or using a handle (as in the photo from the user jumper_at_home).

jumper_at_home User FORUMHOUSE

The maximum depth was 1.8 m (auger + extension). There was no need to go deeper. Homemade winch - 2 gears and a chain from a motorcycle.

In order for the plate with the main electric motor to move freely along the vertical pipe, four rollers can be installed on the carriage.

Another lift design involves the use steel cable and winches with an additional electric motor.

Mechanic020 User FORUMHOUSE

The main electric motor of the drill travels up and down the square pipe. It moves thanks to a winch (which I already had). This winch is needed to pull the drill with soil out of the well.

For comfort Mechanic020 made a remote control that controls the winch and rotation of the drill during operation.

The drill, together with the soil adhering to it, can create quite large loads on the winch. At great depths, it will work on the principle of a piston, creating a vacuum underneath and aggravating the situation when rising upward. Therefore, the more powerful the winch used, the better.

DmitryEvg User FORUMHOUSE

My winch is designed for 250 kg (500 through the chain hoist). Power – 1 kW.

Bottom support for bed

The lower support of the frame can be equipped with two wheels (for convenient movement within construction site). If everything is done correctly, the installation will be transferred from the transport position to the working position by simply tilting the bed.

It is advisable to install adjusting screws on the supporting elements of the frame, which will help you adjust the drill in accordance with the vertical level before starting work.

Materials for the manufacture of the frame are selected for reasons of strength. Not everyone can independently perform complex structural calculations, but anyone can benefit from the experience of the participants of our portal.

Yes, user Tri.Dr.E I made a frame from a corner 50*50*5. The vertical supports and the upper crossbar are made of two corners of the specified size fastened together.

User jumper_at_home I put a different metal profile with a wall thickness of at least 3 mm into the structure of the frame. The platform for the power plant was made by him from a steel sheet 10 mm thick.

And here is a photo of the installation that was created by the user PwrWW“from what was” (as he himself says).

PwrWW User FORUMHOUSE

The hardest thing was to find two smooth, solid three-meter pipes with a diameter of 60 mm. If they didn't exist, I would buy them profile pipe by 80 or 100 mm. Below I used a piece of 80 channel and a corner from scrap metal. Also among the scrap I found 4 U-shaped plates of suitable length.

Ideally, the carriage should be made in such a way that the drill operator can stand on it if necessary. It is especially important to comply with this condition on hard soils.

jumper_at_home User FORUMHOUSE

Here's what was used to protect the drill from turning: a steel stop angle - 6 mm, screwed to the hole for the handle, which is on the drill body. Everything is bolted together with sufficiently flat surfaces. If you want it even more securely, provide a clamp for the seat groove located on the end of the drill.

Mechanical drive

The design of the mechanical drive connecting the drill or other motor to the working shaft of the earth drill is not particularly complex. To create it, an adapter is enough, which is inserted into the drill chuck (Morse taper, etc.) and a cylindrical bushing, one end is welded to the adapter with bark, and the other is put on the drill shaft. In order to increase the depth of the hole being drilled, removable elbows made of the same material as the drill rod can be inserted between the drill and the drill.

In order to prevent damage when the working element jams, the drive and the drill should be connected using a special protective pin. The pin is made of metal rod - 4...8 mm. It is better to test the installation with a pin having a minimum diameter (4 mm).

Almost a pro User FORUMHOUSE

Imagine if your drill hits a stone and jams. I use a 4mm nail as a shear pin and it has never been cut off. But if an obstacle is encountered, it doesn’t give too much away.

Homemade drill

As we have already said, the working part of the installation (drill) can be purchased at a specialized store, but it is quite possible to make it yourself. Here, for example, homemade drill with removable blades.

To make it, we need a thick-walled pipe of suitable diameter (30 mm), as well as material for the blades and for their base. The bases to which the blades will be screwed can be made of thick metal sheet (6...10 mm). The blades themselves should be made of high-strength spring steel (Article 65G). If you need a garden hole drill of small diameter, then you can use ordinary springs from a truck.

To make blades, you can use circular saw blades.

The diameter of the drill should be 5 mm larger than the diameter of the holes being drilled.

We present to your attention a sketch drawing of the product.

By dropping the top handle, we get exactly what we need.

The design of a homemade drill must meet the following parameters:

The angle between the cutting blades (between the blades) can vary from 25° to 30°.
The front edge of the blade is sharpened at an angle of 45°...60°.
It is advisable to weld a thick metal drill to the lower end of the drill, which will make it easier for the installation to penetrate dense soil.

How to attach a garden auger to a drill.

If you've ever tried to dig holes for, for example, fence pegs, then you know what a tedious and tedious task it is. I recently had the same need at my dacha. Only the holes had to be made not for the fence, but for the piles on which the foundation would subsequently rest frame house. According to the design, there should be a lot of these piles; drilling so many holes by hand is simply unrealistic. Accordingly, I became interested in ways to automate/mechanize the soil drilling process.

It was immediately discovered that similar tasks had already been set for humanity and, therefore, such cool things as motorized earth drills were invented. Typically, this is a frame with two handles (so that it can be held by two people) on which a gasoline engine is mounted with a gearbox to increase torque. The rotation from the gearbox shaft is transmitted to a special earth drill, also called an auger. Such devices are not cheap - from 10 to 100 kilorubles.

You can also rent a tractor-mounted hole drill. This is provided that you can get close to the drilling site. There are modifications with a special long manipulator, which is very convenient. Such a hole drill drives up to the desired area, secures itself there, and immediately drills a whole bunch of holes within a radius of up to 8 meters. But I liked this option least of all, because I really wanted my own drill: I wanted it - I woke up at night and went to drill holes!

In general, I was almost ready to buy a Hitachi gas drill for my excavation work, but then fate gave me an amazing surprise in the person of my neighbor, who, out of the blue, started talking about his electric earth drill, which he didn’t know what to do with. The drill is electric earth drill, i.e. This drill is powered by mains. In addition, it has a built-in battery, which, however, does not last long, but still.

Today, no one will be surprised by the fact that specialists often use an electric or gasoline-powered earth drill. This allows them to significantly reduce drilling time, and a person spends virtually no physical effort with such equipment. In this article, maximum attention will be focused on electric drills for excavation work.

Modern drills - types, which one to choose?

First, let's figure out what drills exist today. All models can be safely divided into three types.

Hand drills. This type is used for drilling, as a rule, single holes. When using it, you need to apply a lot of physical force.
Gasoline drills. This type of equipment is very common. It can be used for both individual and professional construction. The units are powerful and productive.
Electric motor drills. These units are not as powerful as gasoline units, however, their operation does not require much physical effort. They are convenient for individual construction, when drilling holes for posts, and when planting trees and bushes. However, it is worth remembering that the garden electric drill will only work if you have an extension cord for the electrical network.

To summarize, we can conclude:

the first type is simple, but not productive,
the second type is powerful, productive and can be used when working on any soil,
the third type (electric drill) is less productive, requires a wired extension cord, and can be used in individual construction.

Considering these characteristics, you can easily choose exactly the drill that is right for you!
Let's look at the technical characteristics of two models of electric drills.

Electric drill model Texas ea1200

Let's look at its main technical characteristics:

power 1200 W;
maximum drilling diameter 150 mm;
maximum drilling depth 800 mm;
generated noise level 90 dB;
weight 12.8 kg.

Specifications:

power 1050 W;
maximum drilling depth 1 m;
drilling diameter range 80 – 200 mm;
weight 14 kg.

As can be seen from the presented technical characteristics Electric hole drills are significantly inferior to some models that run on a gasoline engine. Therefore, if you need to drill the soil often and a lot, then you should give preference to gasoline equipment. For rare use, an electric one is ideal.

You can make any drill with your own hands, but to make an electric or gasoline drill, you will need a lot of parts, tools and a solid base of knowledge. Therefore, if you are thinking about making a homemade drill, then the easiest way for you to make a hand drill.

To make it you don’t need a lot of material or special tools. During manufacturing, special attention should be paid to the drill blade. Often, a chainsaw disc is used to make the blade. Using a grinder, it is cut into two parts and welded to the rod at an angle. Such a drill can be used in private households, but you should understand that during its operation it will be necessary to exert a lot of physical force.

An electric drill for excavation work is successfully used in cases where it is necessary, for example, to drill a hole for piles, make a trench or recess for installing fence posts, drill a hole for planting a tree or shrub, etc.

Brief description of the device and equipment advantages

By design, an electric drill for excavation work is an electric motor that has two handles, as well as a clamping mechanism used for clamping. This tool is most often made in the form of an auger. It is worth noting that the nozzles are removable and can be of different diameters, which allows you to adjust the size of the hole that will be drilled. It is also worth noting that there is a conditional division of drills into types, depending on their purpose. There are gardening, earthing and piling tools.

An electric drill for excavation work is a rarity among people who have suburban areas, despite the fact that it has some advantages. If you compare it with manual type, then, of course, the plus is that the main rotational force occurs due to the electric motor, and not human forces.

If you compare the device with a gasoline unit, the advantages include silent operation, environmental friendliness and readiness for work (you don’t have to start it like a gasoline unit).

Application of equipment

As mentioned earlier, one of the greatest benefits In terms of using the drill, it is easy to cope with the arrangement of recesses for piles. Of course, you can do this with a manual type of unit, but an electric drill for excavation work will cope with this task much faster. In addition, the presence of small stones or roots inside the soil will greatly complicate digging a hole if it is done manually; this is not a hindrance for an electric motor.

Another convenience of using the equipment is that it is more compact than a conventional drill, and therefore its operation in places with limited space is most acceptable. Small dimensions and high functionality of the unit are its main positive qualities. It is also worth adding that, compared to gasoline models, the weight of an electric drill is less, which makes it easier to work with.

Models and disadvantage

Large models of motorized earth drills are also used for digging wells, for example. Types with a smaller diameter nozzle are used for home use(planting plants, installing poles, etc.). However, it is worth noting that the line of models also includes multifunctional types that have removable attachments. This makes it possible to use them depending on the needs, as well as the quality and type of soil with which you will have to work.

Naturally, the main disadvantage of the drill is that its operation in places where there is no electricity is impossible. Yes, when purchasing a device, there is usually a battery included, but charging only lasts for a short period of time.

Operating principle of the unit

An electric drill is an electric motor and a shaft having a type. When using such equipment, the hole in the ground will have smooth edges and a clear auger diameter. The direct drilling process is carried out due to the fact that the auger has a very sharp tip, as well as pointed helical blades. When the equipment starts, the electric motor begins to rotate, transmitting its force to the shaft to which the auger is attached. This is how drilling occurs.

Favorable cost of the device

The price of an electric drill for excavation work is also one of its advantages. approximate cost devices - 1,000 rubles. It is important to note here that for this amount you purchase the device itself and the basic attachment included in the kit. And then you can purchase separately augers of different diameters, if necessary. In this way, you can greatly increase the functionality of the equipment at a minimal cost. Making the right choice will also help you save money.

If you plan to use the device in the garden, that is, for garden needs, then a power of 1.5 kW will be enough. If you plan to drill holes for construction needs ( pile foundation), then you will need a device with a power of 2 kW or more. If there is such a need, then electric units can also be used for drilling ice.

Reviews of the electric drill for excavation work are mostly positive. Among the main qualities that buyers highlight are ease of use, light weight, quality of the device and its relatively low cost.

There are also negative reviews. However, most often they are left by people who did not understand the rules of its operation and purchased, for example, a less powerful model than was required for working with a certain type of soil. Naturally, the result was bad.

From this we can conclude that it is imperative to examine the soil with which you will have to work, decide for what type of work the tool is being purchased, and only then buy it. It is also recommended to purchase products only from trusted companies. It’s better to pay a little more, but buy a better quality item, than to pay less and buy the equipment again in a year.

Motor drills from Hitachi

Hitachi electric drills for excavation work are quite high-quality and reliable products. The manufacturer of this equipment is Japan. However, it is worth noting that the range of products is not very large. From electric models There are only garden types. This means that the manufacturer does not produce electric models with high power. Only gasoline models from this brand have high power ratings. Today, three main qualities can be distinguished, thanks to which Hitachi products have become quite popular.

The assembly quality of the units is very high.
The efficiency of these devices is also high.
The service life of the devices is quite long.

Product selection and operation

When buying an earth drill, it is best to always go to a specialized store where they can help you with your choice. However, there are a few guidelines that you should always follow. You should always pay special attention to three parameters - power, screw head size and engine size (if it is a gasoline model).

Quite often when working with this tool, it happens that the drill buries itself in the ground. For this reason, almost all new models are equipped with a safety system that turns off the engine if this happens. This system protects equipment from damage. To avoid such a shutdown, it is necessary to periodically stop work and clean the auger of dirt.

It is also designed to protect the unit from accidental starting or to protect a person in case of loss of control of the product.