Cutting wheel for wood for grinder 125. Disc for wood for grinder: choosing the right tool. Grinding wheels for grinders on wood: rough grinding

1. What are cutting wheels?
2. Work tips

The angle grinder, popularly known as the grinder, is a worthy and versatile tool. It is this equipment that allows you to successfully perform cutting, grinding, polishing, sawing off almost any material. When choosing a grinder, it is extremely important to understand which model is recommended for use. The choice is largely determined by the main purpose of the proposed equipment. Metal and wood will require different types of discs and a specific approach, otherwise the work will not bring the desired results.

Wheels for an angle grinder: we start with market research

The range is striking in its diversity. What are grinding discs and how are their characteristics determined? To fully answer the question, the entire market should be divided into main areas.

1. Circles with abrasive coating. This consumable tool is universal, therefore, with its help, any workpiece can be cut and polished with high quality. In addition, the possibility of polishing is assumed. The abrasive tool is not in vain considered one of the best.
2. Disc for grinder with diamond-coated- one of the most common building tools. These products are segmented and solid, and for each option, its own area of ​​\u200b\u200buse is defined. In each case, the possibility of high-quality and accurate cutting of durable materials is assumed, among which are stone, metal, concrete monolith.
3. Saw blades on the grinder visually resemble modern models saws. However, other alloys are used for their production. Previously, products were rare, but now their prevalence is growing rapidly. Most the best option tungsten carbide grinding wheel.

Taking into account the variety of modern products, one should abandon the senseless and sometimes dangerous attempts to establish a circle from a circular to a grinder. Any circular discs designed for low speeds, and on the grinder there is a risk of warping or destruction of the tool.

How to choose a suitable angle grinder model?

When studying modern circles for an angle grinder, it is important to understand the basic principles for choosing a consumable for an angle grinder. What aspects to take into account?

grinding wheels have several standard diameters. The most compact model differs in size in 115 mm. However, 125 mm grinder discs are of greater practical importance. Moreover, it was angle grinders for the 125th circles that were most widely used not only among the pros, but among home craftsmen.

Natural wood always turns out to be a specific heterogeneous material, therefore working with it requires special circles. Grinding discs, which are designed for cutting metal or concrete, are categorically not suitable for such processing. Otherwise, the grinder will be destroyed or burned by overheating.

When choosing equipment for grinding, it is important to note that the standard diameter of the installed shaft is 22.2 mm. Previously, there were several divisions, so labeling still plays an important role. Today, for example, a standard saw blade for woodworking has a diameter of 125x22.2 mm.

Although maximum size The angle grinder is 230 mm, such dimensions are undesirable when processing wood. Choosing an instrument with large diameter(from 150 mm), you run the risk of serious injury. The preferred dimensions are 115x22.2-125x22.2 mm. In addition, the 125th circles are able to cope with a fairly large range of production tasks.

Only if you understand the specifics of the equipment used, you can learn how to correctly select discs for a grinder for safe and efficient processing. natural wood.

What are cutting wheels?

Parameters that are used for classification cutting discs on wood:

• Disc diameter;
• Depth of cut wood;
• Characteristics of the teeth: shape, frequency, number.

What to consider when planning to use a cutting disc for a modern angle grinder?

1. If saw cutting discs for wood grinders will be rarely used, and the type of wood being processed will be different, it is best to choose a model with variable beveled teeth.
2. For sawing softwood and softwood, models with straight teeth are suitable. Such saw blades successfully process even the softest wood, guaranteeing a decent work result.
3. Trapezoidal tooth allows universal use. When choosing such equipment, it is best to cut medium density chipboard. Other products can be used if desired.

What parameters should be taken into account for successful work with wood when choosing sawing consumable tools?

1. Rounded cutouts are required, which will be made towards the shaft.
2. The optimal disc thickness is 2 mm.
3. The depth of the cuts made can reach 20 mm.
4. Cutouts are empty, but in some cases they are filled with copper.

Equipment for grinding and peeling work

In most cases, working with materials involves the need not only for polishing, but also for grinding and roughing activities.

Cutting wood is a dangerous activity. At the same time, anyone who has necessary equipment. The most important thing is to understand the principles of technological operations.

Most often used for peeling petal discs to Bulgarian. Having carefully studied the specifics of the product, it is possible to understand how functional and effective it is.

The name gives an initial idea about the features of the device. consumable tool. His working surface has several petals of sandpaper. This structure is comparable to fish scales. At the same time, this paper with a low roughness allows you to guarantee a soft sanding of natural wood. The quality and degree of processing depends on the grit of the material, so polishing and grinding can be carried out in accordance with the requirements.

The petal disc for the angle grinder is quite popular, but if desired, you can use another consumable tool.

For example, noteworthy sticky universal disc. Modern nozzles on the grinder provide for the possibility of a quick change of Velcro. The price of sticky discs used for basic operations is lower than that of a solid petal one, but the service life is also shorter. If, nevertheless, a universal sticky circle is chosen for the grinder, then it can be used for processing and grinding various materials, which confirms the demand for these products.

A polishing and grinding tool may be of high quality, but it cannot guarantee the successful completion of the job. What is the reason for this? It's very simple: the wood used must be thoroughly dried. Moreover, raw wood cannot be used. Otherwise, the result will be unpredictable. When choosing a disc for wood, you need to be sure that the material being processed has the right properties.

Sometimes cleaning work is required to remove the old layer of paint or varnish, fungal infections. Polishing and grinding tool always show themselves at a decent level only if the wood is prepared according to technological requirements. Bearing in mind that polishing and grinding discs for the grinder are not provided for initial processing, roughing attachments are required.

Choosing similar nozzles for the grinder, maximum benefit they can be felt when cleaning old surfaces that have been repeatedly painted. This is due to the following factor: the nozzles are made in the form of a metal plate, which is densely dotted with wire bristles located closer to the outer circumference, radially or perpendicular to the disk.

Work tips

Finishing work begins only after successfully giving the workpiece a preliminary outline. The results largely depend on what types of nozzles are used to perform the tasks.

Angle grinders are used in the form of a cutter, as well as polishing and grinding attachments. Nozzles on the grinder increase the functionality of the device used.

So, how to carry out the polishing and grinding process when processing wood? What tools do you need to be successful?

1. Brush cord. These tools are ideal for rough wood sanding. It is assumed the possibility of successful leveling of wood, with the addition optimal shape product.
2. end discs allow for easy turning of workpieces. In most cases, such work is required for bevel cuts. The operation of the end disk resembles the interaction of the workpiece with the saw.
3. Flap sanding attachments are the most popular variant of the applied Supplies. The characteristic of the tool determines the possibility of processing various workpieces, including natural wood. It is important to note that the cleaning of complex wooden objects is carried out only using radial strips.
4. Felt circle - allows you to achieve minimal roughness, processed products. The basis is pressed wool, fine-haired, semi-coarse-haired and coarse-haired. Felt working tool allows not only to carry out high-quality processing of wood or other material, but also to give a perfectly smooth surface, comparable to a mirror.
5. A wheel for a grinder designed for grinding is often compared with a disc of the same name. It is important to note that the Velcro circle is universal tool, which has a wide range of applications. Various fixtures for wood processing certain tasks, but the grinding wheel sometimes surprises with its versatility and high level efficiency.
6. The chain disc for wood is one of the most productive, but rough ways of processing natural material.

When choosing equipment, it is desirable to take into account not only the diameter, but also each accompanying informative designation. The inscriptions will allow you to determine the purpose of the tool and follow the recommendations during operation. Marking discs, circles and nozzles for grinders is a guarantee of a successful result.

A modern grinder is a convenient and effective tool. For quality work special nozzles and discs are required to effectively process wood, metal and any other material of interest.

An angle grinder, which is commonly called a grinder, is not intended for processing wooden products. Even with proper selection of working circles, such operations are unsafe for health. Manufacturers producing discs for wood grinder 125 refer to this aspect in operational conditions, but not all people pay attention to this warning.

Working discs for angle grinders

In modern industry for the grinder, several types of discs are provided:

1. Abrasive wheels, which are divided into grinding and cutting wheels, are quite fragile if they are not used for their intended purpose. The range of operations for which they are designed is performed perfectly.
2. Diamond coated discs that are used for processing building materials and hard rock stone. Subdivided into solid and segmented. Segmented discs are more suitable for grinders for metal.
3. Working circles for circulars, which experts do not recommend using in the processing of wooden products. It is better to choose saw blades adapted for the grinder, which are also popularly called a milling cutter.
4. Chain discs for grinders. Although outwardly they resemble shots from horror films, they cope with wood operations in the best possible way. They consist of a circle, along the edges of which a chain is applied like on a chainsaw. High-quality steel allows you to perform various operations with lumber, or rather, milling, modeling, stripping and cutting holes in logs.

When choosing wood discs for a grinder, you need to pay attention to the following points:

• the diameter of the circles should not exceed the diameter for which it is designed Grinder;
• select the main details should be only those that are allowed for manipulation with the tree;
• sometimes you have to remove the protective cover, which is unsafe.

Therefore, you should try to select only those working circles that are provided for these tools, taking into account the diameter of the grinder and the material. Experimenting with power tools at high speeds may result in injury.

The nuances of using each type of circle

Diamond wheels can be called universal because they are suitable for almost any material. For processing building stones and other hard rocks, this disc is ideal. But segmented diamond-coated wheels are not used for metal processing, and they will not cope with wood either. Lumber usually hides many surprises in the form of knots and structural heterogeneity.

Metal abrasive discs 125 may be used to cut through wood. But at the same time:

• the thickness of the material should not exceed 4 cm (and it will have to be cut on both sides);
• it is necessary to take a break regularly to check the circle;
• change it at the slightest sign that the part has led;
• change a worn disk in a timely manner.

And you should also be prepared for smoke and the smell of burnt wood. It can take more circles to process lumber than a steel plate.

The use of circular discs for an angle grinder 125 is dangerous to health and life. Although there are advisers on how to adapt a circle for a circular grinder, it is better to refuse such recommendations. If only because the speed of rotation on the angle grinder is higher, because of which there is a danger of breaking the circle and increased vibration of the power tool. Circular circles are very fragile, and during their use on the grinder, there is a possibility of injury from flying fragments.

In such cases, it is better to use a milling cutter for a circular saw. It is distinguished by the shape of the tooth and the presence of special expanders, which eliminates jamming, minimizes the appearance of a reverse impact and the occurrence of vibration.

For lumber processing, it is best to use chain discs on wood. The tool steel used for their manufacture is able to withstand loads and not shatter into fragments.

The service life of such a circle with a chain is several times longer than that of a cutter, in addition, it can always be sharpened. But the price of chain discs for a wood grinder 125 or 230 exceeds 2 thousand rubles.

Safety first!

Convenience in the use of angle grinders in operations with wooden material overshadows safety.

However, you can minimize the risk by observing some conditions:

1. When working with a grinder, use safety glasses and overalls.
2. The protective cover must not be removed.
3. Do not use a defective wheel in work, as well as discs on which there are even the most minor defects.
4. When working with a grinder, you should hold the tool with both hands.
5. It is impossible to lay the grinder until the rotating part stops completely.
6. The cord from the tool should be at a distance from the working circle.
7. Refrain from planned actions with a grinder if you feel unwell and in a state of intoxication.
8. Use wheels that are strictly suitable for the diameter of the tool and designed to work with the selected material.

These rules will help to avoid unnecessary injury when using the grinder in woodworking.

When choosing working discs for a grinder when buying, you should remember that it is better to spend a significant amount once, but to purchase a circle with a chain for a long time. It will help to perform many operations when working with lumber, as well as raw logs.

If the wheel is needed for a one-time use, you can opt for a milling cutter. Such a disc can also be used in working with aerated concrete and other materials. The cost of the cutter is lower than the chain cutter, but also exceeds the price of the abrasive device.

The most extreme case is the purchase of a cutting abrasive disc. But you should be prepared for strict observance of safety precautions: there is no need to swallow smoke and “enjoy” the aroma of burnt wood. In any case, such savings can cause irreparable harm to health, as well as lead to additional costs.

Angle grinder is a universal device with which you can work with any material. Perform cutting, peeling and grinding operations. Among the people, she received the name Bulgarian. When handling the tool, you need to carefully select the circles. It depends on the size of the equipment, the rotational speed and the type of surface to be treated.

A variety of discs for grinders

The range of discs for angle grinders is great. When buying, you need to understand well what discs are for grinders. They differ depending on the work performed:

Characteristics and choice of circle

When choosing a circle for an angle grinder, you need to take into account what material will be worked with. In this regard, several factors are taken into account:

Sometimes there is a desire to install circular circle to Bulgarian. This cannot be done. The reasons are as follows:

Cutting disc for wood

The cutting disc for wood for grinders is made of high-strength alloy. When choosing, you need to be guided the following rules:

• Hard wood requires the use of an variably beveled wheel.
• For softwoods and softwoods, a straight tooth is used.
• Medium-hard rocks lend themselves to cutting a trapezoidal tooth.

In progress circles are heating up. It is not always possible to cool them down. Therefore, slots are made from the side of the teeth to the axis. They are 2 mm wide and 20 mm deep. Sometimes they are filled with copper. expansion is compensated. This prevents deformation of the metal.

Rough stages of work

At the first stage, the blanks are peeling. To do this, there are nozzles on the grinder for working with wood:

Gentle discs for wood

These are nozzles universal type. They are used depending on the work performed:

Tool cutter features

The cutter as a nozzle for the grinder is allowed for use, but requires precautions. With its help, you can make grooves, roughly process the ends of the workpiece or saw it. In the process of work, its jamming is excluded, but you need to know at what speed it is allowed to use it. It is important to consider in which direction the cutter is rotated relative to the location of the angle grinder.

The surface quality will be somewhat different from working on milling machine. However, the necessary operations can be done.

Using a chainsaw chain

If put on chainsaw chain on disc, you can cut boards up to 40 mm. In doing so, care must be taken. To avoid injury, you must adhere to the rules:

• Do not remove the protective cover. If it interferes with the installation, then the equipment cannot be used.
• The RPM value is set according to the one indicated on the disk. Otherwise, the chain will jump off.
• Work is carried out in protective glasses and gloves.

If it is necessary to work with wood, it is possible to use attachments for a grinder for wood processing. However, you must first read the instructions. Such work has its own characteristics. If you ignore them, you can easily get hurt.

Angle grinder (angle grinder)

A wide range of power tools on the Russian market is designed to facilitate different types self made. If in professional field purchase specialized equipment is simply necessary, then in everyday life it is not always rational to spend money on an expensive tool that, after doing a certain job, may not be useful at all. The most popular power tool is the angle grinder (angle grinder). The scope of its application is not limited to metal processing - grinding wood with a grinder is carried out using special nozzles.

For those who do not know "Is it possible to process wood with a grinder?" this article will be helpful. To perform grinding and polishing of wooden products or large surfaces of the array, you will need to purchase the appropriate nozzle - a circle. For grinders different sizes nozzles are selected, designed for a certain speed of rotation. Special discs designed for wood processing must be carefully selected. The disc must match the dimensions of the tool; a special nut is used to secure it.

When working with angle grinders, it is necessary to strictly observe safety precautions and use only factory wheels that are suitable for a particular model of power tool.

Wood processing grinder

Coarse wood grinding discs for angle grinders

There are several varieties of circles that differ in shape, material of manufacture and purpose. As a rule, the wood blank must first be subjected to a rough surface treatment, after which it is subjected to fine or final detailing of the coating with abrasive segments.

For such work, a special attachment for a grinder for grinding wood is intended. The most requested are:

• Roughing circles. Such a grinding attachment for a grinder is best used to remove a layer old paint. Suitable for lacquered finish which cannot be removed manually. It can be a wooden floor painted several times or a window sill. The design of abrasive discs consists of a disc and metal bristles made of elastic wire. Nozzles are available with different location steel bristles. Depending on achievement desired effect the villi can be placed along the entire perimeter of the disc parallel to the instrument or perpendicular to the segment - as in a conventional brush.

• Cordbrushes are a coarse abrasive coated disc designed for rough sanding and removing roughness on a wooden surface. With the help of this tool, the wood blank acquires its final shape. Productivity of works in comparison with the usual manual tool is much higher.

• End discs. Nozzles are used when you need to align the product from the end. Such processing requires oblique cuts and the edges of the workpiece. The execution technique is identical to the file, but the abrasive is more effective than hand tool. When working with a segment, it is important to have skills and then such a simple tool can completely replace moulder cutter in terms of edge processing.

With the help of a grinder for polishing wood, you can completely restore furniture covered with varnish and paint. After this stripping, the thickness wooden base practically does not decrease, but the newly painted furniture will look beautiful and impressive.

While doing grinding work grinder choice of tool is not so significant compared to the presence of well-dried wood and the absence of cracks on the surface.

Grinding wheels for gentle processing and their areas of application

To perform wood grinding with a grinder, nozzles of a universal design and with a special gentle coating are used. Such mechanical restoration intended for the production of certain works:

• The petal disc is used for grinding the array. The design of this segment corresponds to its name. Its work surface is equipped with large quantity trapezoidal petals sandpaper, which overlap each other like fish scales (three-quarter overlap of the previous row). With this arrangement of the petals, the abrasion of the nozzle occurs much more slowly.

This is the most common type of attachment for a grinder for wood grinding, which performs a soft surface treatment, and the tool itself is less traumatic. To achieve the desired degree of processing and High Quality the disc is selected according to the grain size. The size of the abrasive determines how quickly and efficiently the irregularities on the wooden surface will be removed.

Sanded finish on different stages processing may remain a little rough or will be perfectly smooth without the slightest flaws and hooks. The final result can be achieved with a consistent transition from abrasive discs with a coarse-grained fraction to segments for finer processing. Therefore, you will need several discs per angle grinder for grinding wood, which will change in stages.

To use the petal nozzle, certain skills are required, which means that training before performing responsible work will be simply necessary.

• Wheels for soft grinding. Universal nozzle on the grinder for grinding wood appeared on the market relatively recently and is distinguished by a special design and high functionality. Rough work is intended to perform removable disks with desired grain size, which are attached to the sticky base of the nozzle. In this regard, the abrasive tool received the appropriate name - sticky disc.

The main advantage of a wheel grinder for wood grinding is the quick change of a worn-out removable disc: the whole procedure takes place without removing the main nozzle, which is fixed with a nut. First you need to purchase a sticky attachment for grinding on a grinder, so that later, without any difficulties, you can replace the worn abrasive segment.

How to choose sanding attachments for an angle grinder

Circles should be selected according to the main parameters:

• outer diameter (with large sizes, the processing process is accelerated and the service life is increased);
• landing diameter (setting a circle of a larger size to a smaller one is possible using a special adapter);
• thickness (the greater the thickness, the longer the segment will last);
• grain size (the fraction must correspond to the type of processing: a coarse abrasive for rough work, and a fine one for soft processing and creating a finish coating);
• type of segment (special nozzles are suitable for processing wooden surfaces).

Reference! The diameter of the shaft in modern angle grinders for wood is 22.2 mm.

What you need to know when working with a grinder

Update floor covering(parquet), furniture or facade of the house, where there are wooden structures or individual elements, is performed using a grinder for grinding, which is equipped with different nozzles. Therefore, it is not surprising that angle grinders for wood polishing are in demand among professionals and in everyday life. But in order to choose the right tool for the job, you need to carefully examine the wooden surface for the presence of fungus, cracks and bumps. A video is provided to help beginners who want to know "How to properly grind a tree with a grinder".

For each angle grinder model in without fail the grinding attachment must be selected, only in this case will the safe performance of work be guaranteed and high-quality processing surfaces. Before you start working with a grinder (wood sanding), you need to make sure that the disk is properly fixed. Move corner car on the surface it is necessary to smoothly and not allow vibration of the tool.

When working with an angle grinder for grinding wood, it is unacceptable to use discs of small thickness (high rotation speed and load lead to a break in the circle, which is fraught with injuries).

The cost of circles for woodworking

The price of a tool for polishing a wooden surface is not high, but depends on the material, diameter and thickness. The table shows average cost abrasive tool in major cities Russia:

Handmade requires application quality tool, and an angle grinder with nozzles greatly facilitates the work and speeds up the process of processing a wooden surface.

Angle grinder - very useful tool, which can be used in various fields of production. It is due to its versatility that it has become widespread both at industrial facilities and at the household level.

Types of nozzles for wood

As a tool for woodcarving, only angle grinders with speed control are suitable. Since the main purpose of the grinder is the grinding of homogeneous materials, then to the processing of a heterogeneous structure wooden materials must be approached very carefully.

The following types of circles for wood can be distinguished:

• Wood saw for grinder
• Cutting discs
• planers
• Grinding

Each of these parts must be used for its intended purpose.

saw blades

A saw blade for wood for a grinder consists of a metal circle with a chain attached to the edge. Design of special saw tools similar to those used on chainsaws. But are made saw blades from tungsten carbide. When a disk for a grinder on a tree hits a solid obstacle in the wood - knots, resin, metal, its base rotates without breaking the chain. With chain nozzles, it is quite easy to clean the logs from knots and bark, to give them the necessary initial shape.

Cutting discs

Various manufacturers also produce cutting wheels for wood specifically for angle grinders, for example, the Bosch cutting wheel. Their design differs significantly from the design of disks for circular saw. Usually they have side teeth that protect the nozzle from jamming. Differ cutting tools by number and shape of teeth:

• bevelled;
• straight;
• in the form of a trapezoid.

The first version of the shape of the teeth is considered universal. It is suitable for all types of wood with small amounts of work. When sawing wood from soft varieties, it is quite possible to use discs for a grinder on wood with a straight tooth. Trapezoidal teeth are capable of processing quite solid products from wood: chipboard, fiberboard, OSB boards.

In addition, cut-off wheels vary in diameter. Minimum size- 115x22 mm. The most commonly used circles with a diameter of 125 mm, they are universal and suitable for a wide range of jobs. Maximum possible size- 230 mm. But the latter option is undesirable to use when working with wood, as the likelihood of injury increases. Depending on the size chosen, the depth of cut in the wood will also be different.

Disks - planers for grinders

maybe use of angle grinder as a planer. For this, special circles are used - planers. Work with such nozzles is allowed without a protective casing, since solid discs are not destroyed. Many brands of wheels can be sharpened repeatedly. Before use, an additional handle must be installed on the angle grinder to more securely hold the tool with both hands.

Grinding discs

This type of circles allows you to use the machine for its intended purpose. For finishing and polishing wood surfaces can be used different kinds nozzles:

• cord brushes;
• end circles;
• petal nozzles;
• emery circles;
• cutting nozzles.

Rough processing of wood is carried out with the help of special cord brushes. End discs are designed to level the edges of parts, which is often required when miter sawing workpieces. They make a great file replacement.

The widest range sanding attachments- at petal circles. Depending on the size of the abrasive grain, the wood surface can be cleaned with varying degrees grinding. With a gradual transition from using a coarse-grained nozzle to discs with finer grains, the effect of polishing parts is achieved. The system of trapezoidal petals, which are stacked with a three-quarter overlap on top of each other, wears rather slowly. If the embossed surface wooden product complex, then flap discs with a radial arrangement of abrasive strips are used.

Using sandpaper or sandpaper special nozzle allows you to grind quite large areas wooden surfaces. The ability to quickly change the sanding cover makes these tips versatile.

When removing old paint and varnish coatings, peeling nozzles are often used. Typically, this is a wire brush attached to metal base. It can be located either parallel to the surface of the circle or perpendicular to it. There are options for fixing the bristles on the perimeter of the disc.

When working with wood, you need to make sure that it is fairly dry. If there is fungal damage on the surface of the workpiece, they must be cleaned to healthy wood.

Universal wood discs for grinder Graff Speedcutter

Wood disc for grinders Graff Speedcutter is Circular Saw with three teeth, which is intended for high-speed angle grinders. It is used in models with a maximum rotation speed of 12.2 thousand revolutions per minute.

The three carbide teeth are made of tungsten carbide and set at a 5° angle to the steel base of the tool. Thanks to this design and special form each tooth, the cut surface is very clean and even. A disc is being made for the Graff Speedcutter grinder with a size of 125x22.23x3 mm. The cutting width of the wood is 3.8 mm.

Designed Graff Speedcutter circles for artistic wood carving, cleaning and grinding various breeds tree. They are also used when cutting and selecting grooves in wood, its transverse cutting and longitudinal cutting. It is possible to use such nozzles when processing parts made of aerated concrete and gas silicate, fiberboard, chipboard, laminate, drywall.

Rules for working with the tool

Any tool can be a serious hazard if the instructions for use are not followed. specific situation. Bulgarian for cutting wood in this sense is no exception. The main points that are necessary when working with disks for an angle grinder - angle grinder on wood:

• Choosing the right circle size
• Installing a wood disk for a grinder
• Selecting the appropriate operating mode for the machine
• Refusal to use damaged circles
• Use of personal protective equipment

The nozzle size should be installed without problems under the protective cover of the machine. If this does not work, do not remove the protection. When working on wood with an angle grinder, it is necessary to use only special circles on wood for an angle grinder. The use of attachments that are designed to work on other materials may result in injury or a damaged tool. In order to avoid the destruction of the disk on wood for the grinder, revolutions grinder must match those indicated on the surface of the circle. Before starting work, it is worth checking the wood disk for defects and damage. If they are present, then it becomes dangerous to use. When working with the tool, eye and hand protection must be used. It would be best to use tight overalls.