‍♂Best grinders (angle grinders) for summer cottages for 2020

LBM is an angle grinder, and in the common people it is a “Bulgarian”. This instrument first appeared in the 70s. It was imported from Bulgaria, hence the name stuck to it. Now you can find other names for grinders: they are called angle grinders, angle grinders, grinders, angle grinders, etc.

For construction work in the country, this power tool is indispensable. It will also come in handy for home repairs. He copes with various building materials and will perform grinding, cutting, cleaning the required surface.

If you have decided to purchase this type of power tool, then in this article you will get acquainted with an overview of grinding machines, as well as find answers to the questions: "How to choose?", "Which company is better?", "Which one is better to buy?", "How much worth it? " and many others. The editors of the website "Ya Nashla" offer you an overview of the best grinders (angle grinders) for summer cottages for 2020.

Criterias of choice

The main criteria for the selected model include its high performance, efficiency in use and durability of service.

To do this, we will consider in more detail the angle grinder device, the principle of operation, technical characteristics.

Instrument device

An electric angle grinder is called because of the location of the axis of the motor and the cutting disc at right angles to each other.

Consists of two parts: a cylindrical body, which is made of plastic with an electric motor located in it and an aluminum reducer for heat dissipation. They are interconnected by a gear train.

The necessary attachments or disc of the required size are attached to the rotating spindle.

On the body, near the attachment of the attachments, there is a side handle, an on / off button.
It also has special openings for air outlet - air ducts.

LBM are used in construction and in solving household issues.

Control

The tool control key is located on the body, in its side or top.

Advice:

• If the grinder is needed for grinding work, it is more convenient when the start button is located on the side.
• For cutting materials, select the option of its top location.
• It may also be the location of the switch at the bottom of the case.

Spindle lock button

This retainer is located on the gearbox. It secures the spindle with screwed nuts and simplifies the replacement of accessories (attachments).

The fixation can be:

1. key - with a nut;
2. without key - performed by pressing the latch.

Functional

The tool is multifunctional, with its help it is possible:

• cut the building material into pieces;
• grind the necessary parts or seams;
• clean off rust, welding, paint or other contaminants;
• cutting screws.

The grinder copes with various building materials:

• metal;
• concrete;
• brick;
• asphalt;
• ceramic tiles;
• porcelain stoneware;
• tree;
• plastic;
• natural and artificial stone;
• wood, etc.

Siding, fittings, profile, corner, corrugated board, channel bars - for everything that requires cutting or processing during construction or repair, you will need this electric assistant.

How to work properly

The angle grinder is an electric tool, so you must follow some rules when working with it.

There are several of them:

• mandatory reading of the instructions before starting work;
• it will be prudent to use safety glasses or a shield, gloves, headgear, shoes, which will warn against possible minor injuries to the limbs by a flying disc, a ricocheted piece of material, sparks in the eyes, twisting hair or clothing.
• Adopting a comfortable, stable position. To avoid a possible jam of the disc in the material with the subsequent jerk of the angle grinder, from falling and injury.
• In humid air, precipitation, drops on an electric tool, work should be transferred.

What to look for:

Pay attention to the location of the cord: it should be kept away from hot, sharp, chemically hazardous objects, etc., to avoid damage. Do not bend it near the cabinet. Do not carry the instrument by the cable.

Important! In the working process, try not to close the air ducts so that the tool does not overheat.

Under no circumstances should there be children near the working tool.

Compliance with the rules for the use of angle grinders will protect against health threats, and in some cases even death. Unfortunately, this can also be, please consider this.

Now let's move on from the highlights to the more detailed ones.

What types are there

All grinders are divided into different types, depending on:

• dimensions:

1. Models up to 3 kg are considered light, with a disc diameter from 115 mm to 125 mm;
2. Medium - the weight category of which is included in the frame from 3 to 5 kg, with a cutting wheel diameter of 150 mm and 180 mm;
3. Models with a weight of 5 kg to 6 kg and a disc diameter of 230 mm are considered heavy.

For comfort when working at home or in the country, choose a narrow, lightweight model that fits comfortably in your hand.

• By appointment:

1. household - to perform construction and repair work in the country, at home, in an apartment;
2. professional - for long-term work, with a number of additional functions that ensure a long service life and create comfortable conditions for longer work.
   Professional models are light and durable due to the gearbox made of magnesium alloy. The heat dissipation of such models is more efficient.

• By type of food

Power supply of the machine is possible from the mains using a cable or from a battery.

Such models are abbreviated as battery (battery grinder). It is convenient to work with them in places with difficult access to the power grid: at a height, in the field, in rooms without electricity.

The popularity of such models is explained by the possibility of their own production in the "garage" conditions. This makes it a budget option for angle grinders.

Compared to the electric one, the battery-powered grinder is small in size, which expands the convenience of its access to various parts. It creates much less noise during operation. Its portability makes it easy to transport, carry, and perform construction tasks.

Along with the advantages, this type of grinder has disadvantages:

1. low power of the tool, which is not enough for working with thick building materials that require prolonged efforts.
2. The short duration of the process. The battery power runs out quickly and the waiting process becomes tedious. In some models, manufacturers have taken this moment into account in the form of a backup battery.
3. Repair of this type will be costly, because spare parts are not freely available.
4. The cost of batteries is much higher, which is due to the undoubted advantage of their operation without a network.

Advice: If your choice falls on a battery, then choose with a power of 0.6 to 0.8 kW, so that it is as useful as possible and does not drain the charging battery so quickly.
With a battery capacity of about 3 A / h. Weighing no more than 2.5 kg - for convenience during long work.

Specifications

• Power

The power of the grinding machine will depend on its capabilities when processing materials, weight, duration of use, types of possible construction and repair work.

The price of the electrical appliance sold will also depend on the given power.
The LBM market offers options with a power from 500 W to 2600 W.

Recommendations:

1. for solving household issues, choose with a power of up to 1 kW;
2. for cutting and grinding a metal surface, the best option will be 600 - 800 W;
3. for one-time work on concrete, for example, in the country, this is an option with a power of 1000 W;
4. for long-term work, a 1400 W model with a 125 mm disc is suitable.
   Everything above is necessary for professional use.

• Disc diameter

The disc is an important part of the angle machine. The thickness of the material that he can "take" depends on his size. Its minimum size is 115 mm, and the maximum is 230 mm.

When choosing a disc, you should pay attention to the fact that its cutting part makes up only 30 to 40% of the total area.

The higher the power of the grinder, the thicker the disc can be installed. In the instructions, the manufacturer always indicates the maximum allowable disk size.

Be sure to check the expiration date of the cutter to avoid breakage during use.

A 125 mm disc is suitable for solving most household issues.

Advice:With the same cost of models, choose the one with a larger disc size: the functionality of the device expands, and the wear resistance of a disc with a large diameter will be higher, it will have to be changed less often.

• Speed

The cutting speed should not exceed 80 m / s. when it increases, there is a risk that it will fly apart, and this is traumatic.

The optimum number of revolutions will follow from the given rotation speed and the size of the disk.

That is why for a different diameter of the cutting wheel, the number of permissible revolutions per minute will be different:

• at 115 mm - 13290;
• at 125 mm - 12,230;
• at 150 mm - 10190;
• at 180 mm - 8490;
• at 230 mm - 6650.

As you can see, the larger the diameter of the cutting disc, the less number of revolutions it needs to create the required speed.

Some models provide the ability to independently change the number of revolutions. This is the number of modes on the handle, which is described in the instructions.

Additional functions

• Maintaining the required speed of the disk or other nozzles

Many LBM models are equipped with a speed stabilization system. Adjustment of the speed is necessary when changing the used disc with a different thickness permissible in the instructions.

The number of revolutions per minute directly depends on the size of the cutting wheel: the larger and thicker the disc, the lower its speed will be. And vice versa.

The rotation speed of different discs is different. It can be in the range from 11,000 (with a diameter of 115 mm) to 6,600 (at 230 mm) and below - up to 2,800.

The choice of the desired mode occurs using the built-in function to maintain and regulate the speed of the disk or the selected equipment.

This option will eliminate the risk of disc breakage from operation in the wrong mode, injury and failure of the unit itself.

• Overload protection

With prolonged operation, the electrical appliance may heat up, which indicates the need to turn it off and stop the working process in order to avoid engine combustion.

Convenient auto-off function when the temperature of the instrument reaches from 180 to 200 degrees, it is automatically turned off using the built-in overheating sensor.

This will prevent damage to the tool.

• Anti-jamming protection

During construction work, the tool may jam in the material.

This can lead to a sudden jerk and fall of the mechanism, as well as injury to the user.

Such cases are possible when:

1. sufficiently hard building material (for example, concrete) and a blunt cutting edge;
2. loosening the bolt holding the disc;
3. hitting a third-party object under the cutter of the grinder during its work;
4. inconsistency of the parameters of the cutting wheel of this tool model;
5. incorrectly selected working angle relative to the object of processing.

A special option, electronic or mechanical, will protect the master from blood loss in case of injury or head injury, and the motor from breakdown in the form of its instant shutdown.

The built-in safety clutch will stop the operation of the motor, preventing the disc from flying out and turning the angle grinder towards the working one.

• Protection against accidental activation

For some types of grinders, the emergency shutdown (described above) is combined with the option of blocking from accidental activation. Those. after stopping work, it can be continued only by pressing the on / off mode. again.

This function is also convenient in case of a sudden power outage in the mains, its drops. There is no threat of a sudden turn on of the grinder at the wrong moment.

Again, this refers to the important issue of model safety.

• Protective disc

Or a shroud is another essential piece of safety.
Protects the drive and is adjustable.
For professional models or high-end budget types - by pressing a special button.
In both versions, the casing rotates to the required position.

Important! It is impossible to work with a grinder without installing a protective disk in view of its injury risk.

• Dust protection

An important point affecting the possibility of long-term operation of the grinding saw is its protection from dust generated during the processing of materials, especially grinding, cleaning.

Engine coating in several layers with resin special. with the composition and dust, the outlets in the form of holes on the body protect the angle grinder from clogging with dirt, dust and microparticles formed during operation.

Thus, dust passes out of the case, without settling on important parts, leaving through special holes.

This significantly extends the life of the grinder.

• Handles, vibration

In addition to the main one, the grinder may have an additional handle included in the package. In budget versions, it is made of plastic. In professional forms - with anti-vibration system.

Reducing vibration is important for hand health, especially with prolonged exercise.

On the second handle, located merged with the body, the same anti-vibration system is present in professional models.

For convenience, in some models, you can change the position of the main handle using special levers installed in the body.

This creates additional comfort when it is necessary to change the working angle relative to the material being processed

• Soft start and starting current limiting at start

This function is provided for both household and professional models.

It assumes a smooth spinning of the cutting blade when the tool is turned on. The process takes place without jerks and jerks. So the gears of the mechanism do not wear out. Which is also important for prolonging the working condition of the machine.

And limiting the starting current makes it possible to exclude the maximum load on the network when turned on. Disconnection similarly occurs without jerking.

• Special hole for carbon brushes

Carbon brushes are located in the housing and are designed for continuous transmission of electric current to the angle grinder rotor. They are subject to thermal and mechanical stress, which results in rapid wear of parts.

The amount of sparks emitted during operation depends on them. Under heavy loads on the device, the brushes quickly wear out and the need for frequent replacement.

For convenience, there is a hole on the body of the grinder for changing carbon brushes. This is possible with the help of a wizard or on your own.

Nozzles (snap for angle grinders)

Consumables for grinding machines include various types of attachments. It:

• diamond discs - there are 3 types:

1. solid - with evenly spaced holes along the edge;
2. segmental - with notches along the cutting edge, dividing it into uniform segments. They have good speed data.
3. Turbocharged - combines a row of holes and a row of notches along the edge.

The difference in prices for diamond discs is explained by a different way of applying a diamond coating to their surface: by sintering or laser welding.

The second method is more expensive, but preferable due to the durability of such circles.

Tips:

1. A simple disk is suitable for household needs.
2. Use water during operation to remove slag from the surface and increase the wear resistance of the disc.
3. When the sharpness of the diamond blade decreases, do not discard it, but immerse it in a highly abrasive material in which the rounded (dull) particles of the diamond surface will fall off. It will become sharp again due to its layering.

• Bakelite discs

Also designed for cutting various materials. They have different diameters: from 115 mm to 250 mm and thicknesses from 0.8 to 3 mm.

The thickness must be selected based on the material being processed:
for a thin metal sheet it is suitable with a thickness of up to 1 mm, for thicker ones from 2-2.5 mm.

A correctly selected disc will not wear off for a long time, will increase efficiency and create a comfortable working process.

The disc diameter must match the angle grinder model.

The expiration date is located on the inner hole - pay attention to it.

• Scraper discs are much thicker than cutting discs (6 mm). They serve for leveling welds or other seams or leveling a metal surface.
• Diamond bowls - of various diameters and types, for different types of grinders:
  single row - the roughest;
  two-row - milder action;
  turbocharged - with segmented notches along the edge.
  The tip for sharpening the bowl is the same as for the diamond disc (see above).
• Special casings - with metal pile and dust outlet. Significantly improves working comfort. Small fragments are not sprayed over the entire area, but are directed into a special hole.
• Diamond core bits - also of various types and diameters, are used to cut holes in various planes.
  Advice:
  When working, install the crown not at a right angle, but 45 degrees. After making a small incision, go further down the diameter of the required size, etc. This will save you from displacement of the crown and will give a more accurate cutout result, reducing the heating area of ​​the crown itself.
• Carriages - used for stripping metal, wood, plastic, etc. There are various:
  nylon - the softest, suitable for light cleansing;
  twisted - it can be radial or cup-shaped. She's tougher. Suitable for matting metal, wood, etc.
  Twisted rigid - the name speaks for itself. For more rough work.
• The flap end circle is a type of disc. For wood, metal. Different sizes and grain sizes (glued-in sheets).
  P 40 of them are the roughest, but effective and durable.

The best manufacturers of quality angle grinders

• Hitachi (Japan);
• STANLEY (USA);
• Metabo WEV (Germany);
• AEG (Germany);
• DE WALT (USA);
• Makita (Japan);
• Bosch (Germany).

Prices for grinders

• The minimum cost is 696 rubles. for the model LBM Sterlingg ST-10995, 300 W, from the German pr-la;
• The maximum cost is 85,000 rubles. for the model LBM Flex LST 1503 VR, 1200 W, also from the German brand.

Rating of quality models popular among buyers

LBM with power up to 1 kW

Kolner / KAG 115-500M

Manufacturer: Russia;
Power: 500W;
Price: 1590 rubles;
Reviews: the model belongs to the "New"

Low power, this model of angle grinder with mains supply from a domestic manufacturer. With a number of revolutions of 12,000 rpm.

Working disc diameter 115 mm. The convenience and lightness of the electric model is determined by its weight - 1.4 kg. Spindle with thread no. M14. The cutter inner hole diameter is 22 mm.

This cutter model includes options:

• spindle fixation;
• blocking the activation mode;
• additional handle with the possibility of double position.

Mains power cable 2 m long.

Additional equipment includes:

• set of carbon brushes;
• casing for protection;
• second handle;
• flange key;
• cutting disc.

Warranty: 365 days.

Advantages:

Disadvantages:

ZUBR 115-800 М3

Manufacturer: China;
Power: 800W;
Average cost: 1890 rubles;
Reviews: Rating 5 out of 5, buyers rated price / power / weight.

Angle grinder with 11000 rpm Working disc diameter - 115 mm. The weight of this model is only 2 kg. Spindle with thread No. M 14. The grinder works from the mains.

Additional options include the ability to:

• fixing the spindle;
• locking the power button;
• additional handle, with double position change.

Warranty period 60 months.

Advantages:

Disadvantages:

 

RWS UShM-125/900

Manufacturer: Russia;
Power: 900 W;
Price: 2250 rubles;
Reviews: rating 5 out of 5.

The model is ideal for domestic use: suitable power and disc diameter - 125 mm. The maximum speed reaches 11,000 rpm.

With an inner hole diameter of 22 mm. Electric power supply. Spindle with thread no. M14. The spindle is fixed, there is a blocking of the on / off button. Triple position of the auxiliary stick.

Advantages:

Disadvantages:

 

Bort / BWS 1000-125

Manufacturer: Germany;
Power: 1 kW;
Price: 2190 rubles;
Reviews: rating 5 out of 5.

Grinder with a disc turnover rate of 11500 rpm. and mains supply. Possibility of using a disc with a diameter of 125 mm. Weighs 2 kg. Spindle with thread No. M 14. Diameter of the inner hole 22.5 mm.

Additional functions are provided in the form:

• fixing the spindle;
• additional handle with two-position change.

Electric cable 2 m long.

The package includes:

• side handle;
• key to replace the disk;
• set of brushes;
• protective cover.

Advantages:

Disadvantages:

LBM battery

BOSCH / GWS 12V-76

Manufacturer: Germany;
Battery: 2.5 A / h;
Price: 8110 rubles;
Reviews: 100% of buyers recommend.

This model of angle grinder is battery operated. The rotational speed of the installed disk reaches 19500 rpm. Its size is 76 mm. The "baby" itself, weighing 0.9 kg, is weighty to work with. It is convenient to carry out various types of work in hard-to-reach places with it.

Very handy case with many handles located on the top, side, from the front side. With a large number of retractable mounts.

The package includes two disks for ceramics and metal, a socket wrench, a charger, an additional battery, a protective case.

Advantages:

Disadvantages:

Metabo / WB 18 LTX BL 125Quick

Manufacturer: Germany;
Battery: 3.5 A / h;
Price: 12,290 rubles;
Reviews: rating 5 out of 5.

This model of angle grinder is also from the German brand, it already weighs 2.6 kg. With a 125 mm disc, which is convenient for solving most household and repair issues.

Powered by a battery, the circulating quantity reaches 9000 / min. Internal hole diameter 22 mm.

This battery tool has:

• starting current limitation;
• spindle fixation;
• overload protection;
• engine brake;
• blocking on / off button.

The package includes a battery and a charger.

Advantages:

Disadvantages:

DeWALT / DCG 412 N

Manufacturer: USA;
Battery: 4 A / h;
Price: 7460 rubles;
Reviews: rating 5 out of 5.

The American angle machine, weighing 2.9 kg, is powered by a battery with a capacity of 4 A / h. Ergonomic, dimensions 40 cm * 12.5 cm.

A disc with a maximum diameter of 125 mm can be fitted. It picks up 7000 rpm per minute.

A built-in indicator displays the amount of charge remaining.

Additional functions in the form:

• fixing the spindle;
• regulation of the speed of rotation of the cutting wheel;
• circuit breaker blocking;
• the position of the additional handle can be changed.

Advantages:

Disadvantages:

LBM with a power of more than 1 kW

LBM ELITECH MSHU 2023 E

Manufacturer: Russia;
Power: 2000 W;
Price: 4055 rubles;
Reviews: rating 5 out of 5.

Angle grinder, impressive power. Disc with a diameter of 230 mm, produces 6500 rpm. Her weight is also serious: 4.7 kg. Electric power supply.

Additional options:

• it is possible to fix the spindle;
• the inclusion mode is blocked;
• the additional handle has three interchangeable positions.

A fairly good length of the electrical cable is 3 m.

A set of these parameters allows you to use the grinder under more serious loads and for a long time.

Advantages:

Disadvantages:

BOSCH / GWS 24-180 LVI

Manufacturer: Germany;
Power: 2400 W;
Price: 16848 rubles;
Reviews: the LBM model belongs to "New Products".

The German angle grinder, with a power of 2400 W, makes you think about "the seriousness of their intentions."

With a disk speed of 8500 rpm. and not the largest diameter - 180 mm. She is ready for serious, long-term stress in the hands of a professional.

Its weight of 5.4 kg is quite impressive.

Mains supply, with functions:

• starting current limitation;
• fixing the spindle;
• overload protection;
• blocking the switching mode;
• built-in vibration control system in the handle;
• support flange;
• clamping nut;
• key for two holes;
• protection against kickback when the disc is jammed;
• protection against sudden start.

Advantages:

Disadvantages:

Conclusion

So we examined the varieties of angle grinders and the criteria for their selection. We hope that now it will not be difficult for you to decide on the choice of your "electric power", even without outside help. In any case, in a power tool store, you can contact a consultant to clarify the technical characteristics of the model you like, to confirm your choice. If you have experience in using angle grinders described in the rating, or a more interesting model, tell us about it in the comments.