Good grinder. Five types of wood sanders. What parameters should be paid attention to when choosing a grinder

Wood as one of the most popular and convenient finishing materials does not cause any particular difficulties in processing.

But in order to achieve a perfectly smooth surface, for example, under varnishing, ordinary carpentry tools will not work. A wood sander allows you to speed up and facilitate alignment.

This multifunctional device is presented on the market in various modifications that differ in design and application features.

Types of cars

On sale there are several main varieties of grinders for domestic use. Each grinder has its own design features and mechanism of action.

For carpentry, joinery, construction and repair work, the following types of power tools are chosen:

belt sander for wood (LShM) designed to perform rough and aggressive surface treatment, including plastic, metal;
brush grinders allow you to highlight the texture of wood, removing more soft fibers, remove layers of varnish, old paint. The working part is a roller on which a metal or abrasive nylon brush is put on;
vibration grinder (VShM) used for a softer finish. Gentle processing occurs due to circular movements and a small amplitude of the working tool. The sole has a rectangular shape, which makes it easier to clean the corners;
delta grinder- a kind of flat vibratory grinder with a triangular sole shape. Such a device is suitable for processing hard-to-reach places and small areas, as well as recesses, corners, irregularities;
eccentric sander- a power tool that allows you to bring the surface to be treated to an ideal state, including plywood. This task is performed by the rotational and oscillatory movements of the sanding pad. The device has a high degree of performance, but cannot be used for cleaning inside corners and small surfaces.

A wood grinder is an indispensable tool for processing walls, floors, interior items and other decorative elements. It is able to speed up the process of grinding and polishing surfaces made of natural material several times.

Capabilities of angle grinder, disks for it

Bulgarian (angle grinder) can also be used for grinding wood. It can be used for rough processing.

This tool allows you to quickly clean wooden surfaces, in particular, sand the floor, walls. This universal device is capable of performing a variety of operations, with the appropriate wheels for each: cutting, cleaning and peeling (grinding).

The grinder can cut metal, stone, wood. But sawing boards and other wood is undesirable, otherwise the tool will overheat greatly. Saw blades for wood for grinders resemble modern saw models, but other alloys are used for their manufacture. The only drawback of the angle grinder is the presence of various irregularities after work, which then need to be leveled for a long time.

For grinding work, special circles of red color are used. A good option is to use flap or disc wheels with a suitable grit for each case.

Given that the working plane is placed under a protective cover, it is not dangerous for a person to perform specific actions, which makes it possible to move the tool in any direction. The main thing is to be careful when working with surfaces on which there are protruding heads of self-tapping screws and nails.

Note! To make it easier and faster to replace sandpaper, it is recommended to install a nozzle with a sticky surface on the grinder.

Belt machine

In a belt sander for wood, the working element is represented by a tape fixed around two rollers. During their movement, the tape fixed on the sole is put into working condition and rotates at the desired speed. It is the speed that is considered an important indicator of the operation of this device and it depends on the power, which can be in the range of 500-1200 watts. There are tools equipped with an additional speed controller, which allows you to select the most optimal option for each type of surface.

Belt sizes vary, depending on the modification of the grinder. The most functional device has the highest indicator. At the same time, the weight and dimensions of the structure will also be significant. When choosing a power tool, special attention should be paid to the grain size of the tape used. For the convenience of work, it is necessary to have several types of tapes with different grain sizes. One of the varieties of a belt sander for wood is a brush device that performs the roughest processing.

Orbital (eccentric) sander

According to the principle of operation, this device for processing wooden surfaces is similar to GShM. The main distinguishing indicator is the higher performance from the vibratory grinder. In addition, the processing is carried out more accurately and delicately thanks to the complex trajectory of the grinding element. Peeling is carried out with discs with a diameter of 15 cm. Abrasive mugs of suitable grain size are molded on them.

The disadvantage of an eccentric machine is the formation of an excessive amount of dust. But manufacturers supply models equipped with efficient dust collectors that allow you to work indoors.

Vibratory grinder

The sole of the vibration type technique can be triangular (iron) or rectangular. In the process of processing, it performs circular movements with a small amplitude. The machine is used for those cases when it is necessary to obtain a high-quality surface, for example, to restore furniture before applying stain, varnish. Grinding is required especially careful, because all the flaws will be clearly visible through the transparent layer of the finish coat. At the same time, the device has low performance.

Note! It is better to choose a rectangular sole for finishing large areas, and for corners and hard-to-reach places it is advisable to use a triangular shape.

When working with a vibratory grinder, it is imperative to remove debris, any solids, grains of sand so that small circles - traces do not form on the surface. To remove such defects, you will need an abrasive wheel with the smallest grit. The wood surface to be treated must be well cleaned with a vacuum cleaner.

Oscillating wood sander

This electric tool is a multifunctional renovator that is also capable of sanding wooden surfaces. It differs from other tools in its budget price and very low power consumption. With it, you can process sharp corners and places near vertical walls. To carry out this manipulation, a special triangular-shaped platform is installed on the grinding machine, to which a self-adhesive grinding wheel is attached. In addition, the device makes it possible to effectively clean the floor from glued linoleum, tiles, create slots, cut communication lines.

During operation, the sole moves in a horizontal plane with a minimum amplitude, the tops of the platform deviate by an average of 2.5 mm (1.7 degrees). Due to these movements, surface treatment is performed. Such a device can be used for grinding corners and other hard-to-reach areas. The machine does an excellent job not only with the removal of wood, but also with smeared or dried glue. In general, the oscillating machine is used for finishing in places where other machines cannot cope due to their low productivity or sanding spot.

Criterias of choice

When buying a specific model of grinding equipment, you should consider the tasks that the power tool must perform in the future. The choice of professional or household equipment depends on this.

Professional wood sanders are ideal for long, active and continuous work. They will cost much more than household tools. For use without significant loads and long-term work, simpler grinders should be preferred. If the choice is between a professional device and a conventional one, then it is better to purchase the first option, despite its high cost. If the second one was chosen, then when working with it, it is recommended to subject the device to less heavy loads. Take breaks every 3 hours. Only compliance with simple rules of operation will extend the life of the tool.

It is also important to consider the type of work for which the grinder is selected. For smooth surfaces, the best solution would be to purchase a belt grinder. If there is a need for grinding or polishing decorative wooden products, then it is recommended to purchase eccentric models. The ratio of the cost of consumables and upcoming costs during the operation of the device must also be taken into account.

If you intend to use a grinder indoors, then you should pay attention to equipment with a built-in dust collector or the ability to connect a vacuum cleaner. Given that a lot of dust will form during the grinding of surfaces, you need to prepare for its appearance everywhere. Cleaning the room manually takes a lot of time and effort.

The length of the cord when choosing a grinder model plays a significant role. Since it is inconvenient to work with the device on a short cord, and it is not always possible to use an extension cord.

Battery-powered tools are sold that are relevant when working in the country and in homes where electricity has not yet been supplied. The cost of such models is high.

When choosing a device, you should test the location of the handles, check whether it is convenient to switch modes, how hard it is to hold the machine in your hands.

Manufacturers and models

Among the most popular factory devices with a high degree of reliability, the following grinders are distinguished:

Makita 9924 DB. The device is distinguished by a power of 850 W, a speed of 210-400 m / min and a weight of 4.5 kg. Price 15930 rubles;
Bosch GBS 75AE. The grinding technique has a power of 750 W, a speed of 200-330 m/min and weighs 3.4 kg. Price 15050 rubles;
Sparky MBS 976. The model is produced with a power of 900 W, a speed of 160-340 m/min, and a weight of 3.4 kg. Price 6582 rubles;
AEG BBSE 1100. Main operating parameters: power 1010 W, speed 230-400 m/min, weight 5 kg. Price 15470 rubles;
Skil 7640MA. The device has a power of 950 W, a speed of 340 m/min and a weight of 3.6 kg. Price 6100 rubles.

Of course, there are a large number of other models of grinders. The brands "Interskol" and "Zubr" are in demand, the products of Hitachi, KRESS, DeWalt are worthy of attention. The price range is very wide and depends not only on the manufacturer, but also on the region of sale. Some DIY enthusiasts make homemade grinders using old broken equipment, drills, hard drives. In terms of performance, such devices are unlikely to be compared with factory tools, but they will save money.

The grinder for the car makes the process of polishing and grinding much easier. In addition, the possibility of using fine abrasives provides a uniform treatment of the vehicle body and reduces the likelihood of complete erasure of the paintwork. However, in order to carry out successful manipulations using this device, important nuances regarding its parameters and the principle of operation should be taken into account.

Types of grinders

The modern market offers the following types of machines for grinding and polishing cars:

Purpose and design features

tape - have a high level of performance, are used to process large areas. Sanders of this type perform their functions due to the annular movement of the abrasive belt, which is very similar to the movement of a tractor caterpillar. Most often, a special dust collector is included in the kit, which prevents the dispersion of waste particles. Difficulties in using the unit rarely arise - it is easily installed on the required surface, and all that is required of the car owner is to make uniform movements and monitor the result;
vibrating (surface grinding) - the main working element of such devices is a rectangular sole, on which the abrasive is fixed. Sanding skin, depending on the characteristics of the device, can be attached in two ways: with Velcro or with a clamping mechanism located on both sides of the sole. Grinding and polishing of a car is carried out by reciprocating movements with an amplitude of about 2 mm;
delta grinding - differ from vibration only in the triangular (like an iron) shape of the sole, which can move around its axis or in orbit. Used for processing hard-to-reach areas;
orbital (eccentric). Such grinders are a round sole to which a grinding wheel is attached. All processes are carried out due to the simultaneous rotation of the sole in orbit and around its axis, which allows you to complete the work in a fairly short time;
angular - provide high-quality grinding by means of a grinding wheel that rotates around its axis. Outwardly, an angle grinder is very similar to a grinder and can be used not only for grinding, but also for cutting various materials. For infrequent use, an angle grinder with a disc diameter of 115 to 125 mm is perfect, while a grinding tool with a disc diameter of 180-230 mm belongs to the professional category.

Source of power

air (pneumatic) - characterized by high performance and electrical safety. But maintaining a pneumatic machine for a car is a rather complicated process that requires maintaining a constant pressure and a uniform air flow. A significant disadvantage is also a thick hose, which complicates the grinding process and makes it inconvenient. Such devices are most often used in factories or large service stations, where specially trained specialists can provide proper functionality;
battery-powered electric - are used if it is not possible to connect to the electrical network. Due to the limited battery capacity, they are designed for processing small surfaces and are characterized by low power;
electric powered by electricity - such machines are used most often, due to their convenience, high performance, as well as the price indicator, which varies depending on the model and design features, that is, this type of grinding tools is affordable for any car owner.

How to choose a grinder?

When choosing grinding devices, you need to pay attention to such features:

power, which determines the duration of the device and the speed of rotation of the disk. The higher this indicator, the greater the amount of work can be;
weight. The lighter the weight of the grinder, the more precise the processes performed with it, but the duration of processing increases. On average, the mass of such equipment is 1-2.5 kg;
disk diameter - must match the size of the device;
disk rotation speed - high-performance devices are capable of providing up to 20 thousand revolutions per minute, which is necessary for serious bodywork, for example, in preparation for painting, while 5-6 thousand will be enough for it. It is desirable that the purchased device has a function for adjusting the speed of rotation of the disk;
when buying an orbital sander, such a parameter as the amount of stroke of the eccentric is very important. The lower this indicator, the better the process is performed, but at the same time, the larger this parameter, the faster the processing will be. Standard models are characterized by a stroke of two to six millimeters. There are machines that allow you to adjust the stroke of the eccentric, but they are quite expensive.

Correct use

High-quality polishing and grinding of the vehicle can be carried out by following these recommendations:

divide the surface into several sections and treat each of them in turn - this will prevent the abrasive or polishing from drying out;
at the beginning of work, the speed should be minimal, and after the abrasive is distributed over the surface, it is necessary to turn on increased speed;
in the process of work, it is necessary to periodically turn off the grinding machine - this will allow the car body to cool and prevent it from overheating;
when processing the body, it is necessary to monitor the uniformity of pressure on the sole area, and the movements must be smooth;
in the process of manipulation, the grinding wheels are periodically cleaned with a brush;
If an uncharacteristic sound occurs during the operation of the tool, it is necessary to thoroughly check it, clean it and lubricate it.

Despite the fact that the grinder speeds up and facilitates the repair work, its use still requires accuracy and care, because in case of improper use of the tool, it may be necessary to completely replace the car's paintwork.

The grinder can greatly facilitate the life of the home master. With its help, you can easily remove the old paintwork, rust, wipe the putty layer, and so on. The grinding process itself is a rather monotonous and time-consuming operation associated with a large amount of dust, so doing this work manually is quite problematic.

Grinding machines are not too expensive, there are several varieties - depending on the purpose, work technology, and so on. We decided to start our ranking of the best grinders with the main selection criteria, which you can’t do without.

What are the rules for choosing a grinder?

One of the most productive designs is a belt model, in which an abrasive tape glued in the form of a ring acts as a working surface. It is fixed on the corresponding end rollers and moves at high speed. Such machines are quite powerful, they are distinguished by good reliability and a long service life. Using such a device, you can easily remove a layer of material several millimeters thick, it interacts well with materials of any nature.

Surface grinders will be ideal for finishing preparation of a covering for the subsequent processing. The working plane here is quite large, so such models are well suited for use in large areas, regardless of the nature of the material. One of the main advantages is the good processing of corners - there will be no missed sections that will have to be passed manually in the future.

Another widely used model is the orbital sander. The surface treated with such a device will be perfectly flat, without waves, scratches or indentations. The average power of such devices ranges from 200 to 900 watts. One of the most important criteria for choosing a device is the area of the sole and its type, which will ensure the fineness of processing.

We included all these models in the rating, the choice of devices included in the review was based on user reviews, both home craftsmen and professional finishers. In addition, we paid attention to the value for money of the design, so that it would be affordable for the majority of our readers. Now let's move on to the review.

The best tape models

3. Skil 1215LA

This is one of the cheapest designs included in our review. Despite the low price, the model has a decent power - 650 W, which makes it quite suitable for working with any surfaces. The abrasive belt is centered automatically, so it will not jump off the rollers during use. Tooling can be changed within a few seconds, without the need for additional tools. Work is carried out with a minimum amount of dust and dirt due to the presence of a system for collecting it.

A system for fixing the start button is provided, which is quite convenient for long-term work with the device. The model has a special grinding frame, which will protect the surface from scratches and level it with the highest quality. If necessary, you can connect a vacuum cleaner to the device - for this, the kit includes an appropriate adapter, in addition, there is a dust bag.

Advantages:

Automatic tape alignment system that will not allow it to move;
If necessary, it can be disassembled without the use of special tools;
The dust collector is also a sorter;
The machine is able to work for a long time without interruption.

Flaws:

There is no fixed mounting system.

2. Makita 9910

This design is equipped with a motor with a power of 650 W, which allows it to accelerate the tape to a speed of about 270 meters per minute. RPMs will drop slightly under load, but this is normal. The design provides for a cooling system that, with carefully selected motor parameters, allows the device to work for a long time without interruption. During operation, it does not make too loud sounds, so it is quite acceptable to work without the use of protective headphones.

Installation and removal of the tape is carried out thanks to a special lever, which is well recessed into the body. The work surface is centered automatically. The sole is cast, perfectly flat, without blockages and distortions. The start button moves smoothly, is fixed in the on position. The length of the power cable is only 2.5 meters, which may not be enough. There is an adapter for connecting a vacuum cleaner, the set also includes a dust bag. The mass of the structure is only about 3 kg, the machine can be used as a grinding machine, users have no complaints about the quality of the final surface.

Advantages:

The device is placed in a case that perfectly resists even fairly strong shocks;
The design has double protective insulation, which almost completely eliminates electric shock;
The ribbon is centered automatically.

Flaws:

Short supply wire
No speed control;
The absence of rubberized elements on the handle, due to which the machine can slip in the hands.

1. Bosch PBS 75AE

This is one of the most productive models of the best belt type grinders - this can be achieved due to a fairly powerful 750 W motor. The device interacts well with surfaces of various kinds. The function of limiting the starting current is provided, thanks to which the engine starts to work smoothly, there are no jerks whatsoever. The belt rotates at a speed of 350 meters per minute during idle. The working surface area is 76x165 mm, thanks to this moment, the design can be used to process large areas, in addition, this parameter allows for more accurate surface treatment.

The design provides an electronic speed control system, which allows the machine to automatically adjust to any material. The mass of the device is not too large - 3.2 kg, it is quite convenient to hold it with two hands, the model performs well both on horizontal and vertical surfaces, the tape is not clogged with dust.

Advantages:

Fast tape change system;
Significant ground plane;
Dust collection bag available.

Flaws:

It is difficult to work in the corners, you have to finish the surface manually.

The best surface grinders

3. Makita BO3700

This is one of the most compact models included in our today's review. It is ideal for finishing any surface and works quickly on putty and wood. Users note the insignificant mass of the device, which is only one and a half kilograms - it is convenient to hold it even with one hand, so you can reach even the most inaccessible places. The engine power is low (only 180 W), but the frequency of reciprocating movements is significant - about 2 thousand revolutions per minute, the oscillation amplitude is 2 mm. These parameters make it possible to ensure a clean surface treatment, no defects appear on it.

The design works great in the corners of the floor or walls. The light weight does not let your hands get tired, so you can work with this model almost all day. Comes with a handy base plate with secure attachments for sanding paper sheets. If necessary, it can be replaced with a Velcro pad so that the sandpaper is fixed directly on it, such components are inexpensive, it is quite possible to install them yourself - all you need is a screwdriver. Very little vibration is transmitted to the hands due to the presence of a vibration damping system. The kit also comes with a large dust bag. The trigger switch is equipped with a latch-on function.

Advantages:

Arranged quite simply;
Noise is minimal;
Able to work with any type of sandpaper;
The engine practically does not heat up;
Minor weight.

Flaws:

The outsole wears out fairly quickly.

2. Interskol PShM-115/300E

A very convenient and inexpensive model, it is arranged quite simply: there is a crank and a counterweight on the motor shaft, which does not allow the center of gravity of the device to be outweighed during operation. The sanding sole is attached to the body with elastic rubber struts. The platform in the process of work makes circular movements, due to which the surface is cleaned. Sandpaper is fastened with two clamps. The device works with materials on both paper and fabric surfaces. When working, there is no need to press hard on this tool.

The performance is moderate, for domestic conditions it is quite enough. Consumables are cheap, so the device is very economical. If you use it correctly, the work will remain almost clean. The fact is that this grinder has an active dust extraction system. An additional impeller is located on the motor shaft, which will suck in air through special holes in the platform and direct it to the corresponding pipe, which is closed with a special dust bag or connected to the vacuum cleaner through an adapter. Electronic speed control is provided.

Advantages:

Acceptable cost;
High quality surface treatment;
Reliable sole, resistant to abrasion;
Comfortable rubberized handle that will not slip in your hands.

Flaws:

Noisier than other models.

1. Bosch PSS 200AC

According to user reviews, this is one of the most popular grinders. It is well suited for both grinding and sanding surfaces of any hardness. The device is equipped with a 200 W motor, thanks to which the working platform oscillates at a frequency of about two and a half thousand per minute. The area of the platform allows you to achieve the closest contact with the treated surface. High performance, easy handling. The amplitude of movement is 2 mm. The clamping mechanism is represented by two levers.

Vibrations are well damped using a special system, and they fade in the handle area. Hands will not get tired while using this machine. There is an adapter for a vacuum cleaner, a dust bag. The model differs in the ergonomic case, with the rubberized handle. Such a machine will be very convenient to use for both right-handed and left-handed people. An electronic adjustment of the number of vibrations is provided, and a convenient plastic case for storing and transporting the product is also supplied.

Advantages:

Very comfortable to hold in hand;
Acceptable cost;
Comes with a plastic case;
High build quality - no backlash and squeaks;
Vibration practically does not reach the hands.

Flaws:

Weakly draws dust into the bag.

The best orbital sanders

3. Makita BO 6040

This model will suit both the professional repairman and the home master. The design is characterized by high performance, capable of working with any materials: with its help, you can remove an extra layer or perform the finest grinding. This grinder has two modes of operation - rotation with oscillations or without it. They are switched using a special convenient lever. In addition, there is a five-speed speed control: the highest number of revolutions is 5800 per minute at idle.

The model has a system that is responsible not only for the quality of surface treatment, but also prevents premature wear of the engine and other working elements. There is a smooth start, without jerks, which greatly reduces the load on the gears. The device is able to work with sanding pads of absolutely any hardness. Components are changed using a special hex wrench that comes with the machine. Sanding sheets change very quickly, as the working surface is Velcro. The handle is highly ergonomic, has a rubberized insert, if necessary, it can be installed both on the right and on the left side of the body.

Advantages:

High power;
Universal device;
Excellent build quality;
Good reliability.

Flaws:

There is only one handle, it can be difficult to hold the machine, especially if it is running at full load.

2. Bosch PEX 300AE

Such a grinder has several control levers, all of which are located on the handle of the device, so it is very convenient to use it. In particular, there is a lever for changing the working speed, which is very useful when working with various materials. The handle has several rubberized pads that prevent the tool from slipping. The device has a microfiltration system, which allows you to ensure the cleanliness of the workplace. The engine does not overheat due to the built-in ventilation - the machine can be operated for a long time without interruption and fear that the engine will fail. It is easy to change sandpaper due to the presence of a special micro Velcro on the platform.

The mass of the structure is only one and a half kilograms, which is quite small for a vibration machine of this type. The maximum number of revolutions at idle is 12 thousand. The engine power is 270 W, which ensures high quality surface treatment and fast completion of all work. The oscillation amplitude of the platform is 4 mm.

Advantages:

Perfectly copes with large areas of the processed surface;
Almost no dust;
Equipped with a vibration dampening system.

Flaws:

Makes a lot of noise while working so wear headphones.

1. Ryobi ROS300A

This model is rightfully considered one of the best orbital or eccentric sanders. It is durable thanks to the built-in ventilation system. The branch pipe designed to remove dust can be connected both to the vacuum cleaner hose and to the special bag that comes with the device. The case is made of shock-resistant plastic, which is rubberized, thanks to which the grinder is reliably protected from mechanical influences, it resists well to low and high temperatures.

Overall dimensions and weight are small, due to which the design is perfect for use in hard-to-reach places. There is a lever for adjusting the number of revolutions, the power cord is quite long - about 3 meters. Managed smoothly, without jerks. Comes with 20 sanding sheets. The sole moves along the treated surface evenly and gently, without skipping sections. The equipment is fastened with Velcro, so abrasive materials must be taken on a fabric basis.

Advantages:

Small size;
Almost no dust;
There is a light indication of connection to the network.

Flaws:

The dust bag is not very convenient - it can get in the way a little at hand.

In conclusion, an interesting video

As you can see, the range of grinders on the market today is quite wide, so choosing the most suitable model is not too easy, as it might seem at first glance. We hope that our review will greatly facilitate this task for you. If you have any questions regarding the content of the review or about a particular model, then comments on our article are at your complete disposal.

If you need to achieve the most even and smooth plane, you can not do without. With its help, the work, if not done by itself, then, in any case, will require much less time and effort. One thing remains - to understand how to choose a grinder from a great variety of types.

The basic principle is this: the design determines the scope. Consider the different types of grinders, starting with the most popular. We hope that this review will help you understand which grinder is best suited for your tasks.

Designed for roughing large surfaces or removing rust or paint. A distinctive feature is a high level of performance.

Provide good quality of processing both at draft, and at finishing grinding. Equipment - abrasive sheets with Velcro or simple sandpaper, which is attached to the clips.

They differ from the previous type in the shape of the sole - in these grinders it is deltoid (ironing). Ideal for tasks of increased complexity: for example, grinding stairs, furniture, skirting boards.

They are used for fine grinding, including complex and curved surfaces. The speed of work is also impressive.

LBM is more often used for cutting. However, the grinder will cope with grinding with a bang. She can process materials such as concrete, stone, ceramics or metal. Just don't expect very high surface quality.

Tool for professionals

Listed above are 5 types of grinders that a home craftsman may need. Next, consider more specialized varieties.

Surface finishing tool. Helps emphasize the texture of wood. It is also used to clean surfaces from rust or paint. The name is given by the type of equipment - hard brushes made of metal, nylon or polymers.

The main purpose is cleaning welds, removing burrs and rust. Designed for intensive work.

With their help level solid surfaces of materials such as concrete, granite, stone. Dust extraction required. Some models can be wet sanded.

Top 3 Most Popular Grinders

It is quite difficult to choose which grinder from the presented is better. We have compiled a short rating of the best models (according to users):

MAKITA BO3711 is a surface grinder. Recommended for finishing.
HAMMER LSM810 - belt sander. It stands out against the background of other models with its power (810 W).
HAMMER OSM430 is an eccentric sander. Suitable for working with various materials.

Leading manufacturers

Before choosing a grinder, we recommend paying attention to the brand.