Using a protective mask when working with an angle grinder, glasses for an angle grinder

Safety glasses for working with an angle grinder belong to personal protective equipment (PPE) for eyes with increased mechanical strength (marking S according to GOST 12.4.253-2013). This is due to the fact that they must protect the operator’s organs of vision not only from sparks and small particles of the material being processed and abrasive, but also from large fragments of metal and stone, as well as parts of the cutting wheel when it is destroyed during operation. The weight of such damaging elements can reach tens of grams, therefore, in accordance with GOST, protective glasses of this category are tested by the impact of a steel ball weighing at least 43 g. When cutting metal with a grinder, the glasses must also act as a light filter, weakening the brightness of the sheaf of sparks to the required limit. And when working with stone, concrete and ceramics, protect your eyes from fine dust. Using an angle grinder without personal eye protection is strictly prohibited, as is reminded by a special icon on the cutting discs and in the passports of the manufacturers of this tool.

Safety precautions

There are several types of protective equipment required when operating this device.

Individual protection means

A guarantee of eye safety when using an angle grinder is safety glasses . They have several varieties:

1. Open type glasses. They resemble ordinary glasses for vision correction or sun protection, but have a denser structure and increased plastic thickness. These glasses protect your eyes from sparks and small fragments. Their disadvantage is their lack of protection from dust. When working with ceramics and stone, dust is generated that can cause eye irritation. In this case, the following type of glasses is suitable.
2. Closed-type glasses. They fit tightly to the contour of the face and prevent dust from entering the eyes. They also protect your eyes from splinters and sparks. Some models have a ventilation system that prevents fogging of the inner surface of the lenses. This version of glasses will cost a little more, but it also has more advantages.

Glasses must be worn regardless of the nature of the material being cut or sanded.

Protective mask

Another safety device when working with an angle grinder is a protective mask .
It can be reinforced with a special mesh, which makes it stronger. This mask is much better than glasses, because it protects not only the eyes, but also the rest of the face. The main cause of injury is a split saw blade. Its fragments, flying at great speed, can injure not only the person working with the angle grinder, but also those nearby.

Principles of safe work

The presence of personal protective equipment undoubtedly reduces the risk of injury when using an angle grinder. But it is also worth remembering other safety requirements .

• Protective cover. This device must be on the angle grinder. Some careless operators remove the protection in order to put on a wheel of a larger diameter, which is not intended to work with this angle grinder. Sometimes the casing is removed in cases where it is necessary to use the grinder at an awkward angle. Such actions are unacceptable. Of course, the protective casing does not provide 100% safety, but in most cases it will protect you from injury. Recently, the protective cover for angle grinders has received a useful modification. It's called a dust extractor. From the name it is clear - this device helps direct dust particles in the opposite direction from the operator, which greatly simplifies the work.
• Hand protection. To prevent sparks and hot metal particles from coming into contact with the skin of your hands, it is recommended to use special welding gloves. Small sparks hitting the skin do not cause obvious pain. But when a large burning particle hits, it causes severe pain. At this moment, the hand may shake, thereby creating a traumatic situation. Gaiters will help prevent hot metal from getting on your hands.
• Selecting an abrasive wheel. To work with an angle grinder, you should only use a wheel that is suitable for it. If you use a circle with a diameter larger than expected, it may break without even touching
• with the cutting object. The fact is that different models of angle grinders have different speeds, and abrasive wheels have different speed resistance.
• You should also not use wheels with visible external defects, such as chips, deep scratches or cracks.
• It is forbidden to install a disk on the grinder for sawing wooden products. Firstly, it is dangerous - the saw blade may encounter a knot, which can cause the tool to be torn out of your hands. Secondly, the disk will very soon become unusable, because it is not adapted to such a load. The speed of a circular saw is much lower than that of an angle grinder.
• Sawing object. If the element being processed is small in size, you need to secure it with something. The best option for this would be to use a vice. It is strictly forbidden to saw the product with one hand while holding it with the other. In this case, the sawing element may be torn out of your hands.

If the product is large and installed motionless , it is necessary to ensure that the abrasive disc does not bite. General rules:

1. Always unplug the angle grinder when replacing a blade. This is to prevent accidental startup.
2. When choosing an abrasive disc, give preference to a trusted manufacturer.
3. When working, make sure that the power cord is kept away from the sawing wheel.
4. When using an angle grinder, avoid the possibility of hair and clothing getting wrapped around the rotating disc.

OCCUPATIONAL SAFETY REQUIREMENTS AFTER WORK COMPLETION

5.1. After finishing work with a manual electric machine of the “Bulgarian” type, it is necessary to disconnect it from the electrical network using the plug connector. 5.2. At the end of the work, the manual electric machine and the personal protective equipment used should be cleaned of dirt, dust, sawdust and put in order. 5.3. At the end of the work, you should take off your overalls, safety shoes and other personal protective equipment and put them in the designated storage location, and, if necessary, hand them over for washing and cleaning. 5.4. Any malfunctions or other violations of labor safety requirements noticed during work must be reported to your immediate supervisor and measures must be taken to eliminate them. 5.5. At the end of work, you should wash your hands thoroughly with warm water and soap, and if necessary, take a shower. 5.6. Leave the territory of the enterprise along specially designated paths.

The best way to protect your face while working with an angle grinder

An angle grinder, better known as an angle grinder, is a serious and dangerous tool. But it is quite difficult to do without the use of angle grinders during construction and even minor repair work. The use of an angle grinder reduces labor costs and speeds up the process. Therefore, when working with angle grinders, it is extremely important to follow safety precautions. One of the significant points is the protection of the face, because sparks, scale, small particles of metal, grinding disc and other materials can damage the skin and mucous membranes.

In which direction can you cut the material using a grinder?

Another life hack for an angle grinder, or rather for working with it. Before you start cutting material, you should first figure out which way the tool is spinning - with sparks toward you or away from you. There is no clear answer among users, since the device works in any form. If the nozzle rotates counterclockwise, then the sparks (and the broken circle) will fly in the opposite direction from the operator, but the recoil of the tool when jammed will go to the user. In the second case, everything will be completely opposite. According to safety regulations, it is believed that correct rotation is when sparks fly towards the user, since when jammed, the electric tool will jerk in the opposite direction from the operator.

Be that as it may, manufacturers recommend moving the angle grinder and rotating the wheel in one direction. This will greatly reduce the likelihood that the disc will come out of the slot during the work process. When using this method, the markings on the material are most often not visible due to flying sparks.

You can also change the rotation of the attachments if you move the casing and handle in the other direction. This option will be the simplest (if you have the opportunity to do so). A more complex method is to make changes to the electrical circuit diagram of the device. But even this is not always able to help.

Please note that an important point to ensure the correct position of the work tool is that the cutting line should be to the side of the operator. In this case, in case of possible jamming, the angle grinder will simply be pulled to the side.

When cutting, you should do so so that the working plane does not change, and there are no distortions. The discs must be used in accordance with the material you are processing. Thus, tiles, stone and concrete should be cut using diamond-coated circles of different diameters.

Protective glasses

A popular means of protection when working with an angle grinder is special glasses. They come in two types: open and closed.

• Open glasses look like regular ones, but are made of dense materials that can withstand sparks and small debris. Unfortunately, such glasses will not help when working with hard materials, and will not protect you from dust;
• Closed-type safety glasses adhere completely to the skin and prevent dust and any elements from entering the eyes.

Both options have a significant drawback: the glasses do not completely cover the face and are aimed only at protecting the eyes.

What is prohibited to do

There are a number of rules that must be followed in case of such an injury. In case of a burn from an angle grinder in the eye, it is strictly prohibited:

1. Closing the eyes. Such actions provoke even greater penetration of chips into the structure of the organ of vision.
2. Rubbing the injured area with your hands. Such actions have a negative effect on the mucous membrane.
3. Frequent opening and closing of eyes. Due to the fact that the shavings are stuck to the eyelid, I want to blink constantly. As a result, wounds and scratches of the epithelium appear, and conjunctivitis begins to progress.
4. Drip aloe juice and honey into your eyes. When exposed to a foreign body, it will provoke even greater irritation.

It is almost impossible to remove shavings from an eye with a burn from an angle grinder yourself. In order not to lose vision and to prevent further complications, the foreign body must be removed as soon as possible. If assistance is provided untimely or illiterately, the lens, vitreous body, and retina may be affected by shavings.

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Protective shields

Special shields, or masks, for working with an angle grinder seem to be more reliable, but their cost is higher. Professionals prefer this category of protective equipment, because they protect not only the eyes, but the entire face. Masks come in different types and are made from different materials, which affects their appearance and cost.

The masks are attached using special belts or other fasteners and are held tightly on the head; the protective glass protects against the ingress of scale and dust particles and materials. Some shields have a visor that protects the forehead. In addition, shields are made with a special fine mesh - this is additional protection, including from damage to the mask itself during operation, which increases its service life. Overall, a face shield is more durable than regular glasses.

How to cut a balloon?

Many of us are faced with the presence of an empty gas cylinder, either oxygen or propane. Most people will throw it away, although many useful things can be created from it. But in this case, you can’t do without cutting the metal. This instruction is generally suitable for any cylinder, be it gas, propane, oxygen or anything else. First you should prepare a number of materials and devices, namely:

• grinder with cutting disc;
• compressor;
• hacksaw for metal;
• pump;
• watering hose;
• construction funnel;
• directly used cylinder.

We place the cylinder on its side to make sawing it easier. First we saw off the valve. We take a hacksaw and saw the brass part as close as possible to the place where the connection with the main container takes place. It wouldn’t be superfluous to have someone’s help here, so that while you are making the cut, another person pours water on the cut area so that sparks don’t start flying. Now the container should be filled with water using a funnel. As it fills, the container should be shaken so that any remaining condensation disappears from the walls. Water should be poured to the very top, after which everything should be poured out. It is better to do this in areas where there are no residential premises, since the remains of some gases have a very strong, unpleasant odor.

Now we proceed to the actual cutting of the container. We will already need a grinder. The thickness of the metal in the cylinder usually does not exceed four millimeters, because it can be dealt with using an angle grinder in 15-20 minutes. To ensure safe cutting, you should not wait for the inner surface of the cylinder to dry, but should immediately begin sawing the cylinder while it is wet. The water on the walls will serve as a lubricant for the disc.

What to look for when choosing a protective shield

The safety of your face and eyes directly depends on the quality of the mask. Saving in this case can become deadly.

• You should choose trusted manufacturers with a reliable reputation;
• The mask must be equipped with a steam exhaust system to prevent fogging;
• The most durable materials: polycarbonate and polystyrene. They are usually chosen by professionals;
• The most important functions of the shield are impact resistance and heat resistance. These qualities are worth paying attention to first;
• Shading is an important element of a proper mask. In case of sharp flashes, a poor-quality light filter will lead to damage to the retina;
• If you have to work frequently and regularly with an angle grinder, then it makes sense to think about purchasing an elongated mask - this type will help protect not only your face, but also your neck.

Which side is suitable for installation?

In order to determine which side to place the disk on, it is necessary to take into account several main factors.

In particular:

You can pay attention to the label. If the angle grinder works on its own, namely, it rotates away from the control, then in this case the disk must be installed with the label inside. It turns in the opposite direction, which means the label should be installed outward.

Can be placed without paying attention to the label

But then you can expect the most unpredictable results, for example, the usual breakdown of a disk and an angle grinder. At the same time, experts argue that such negligence can lead to the grinder simply jamming and there is no need to talk about safety in this case.

In order to determine in which direction the angle grinder should turn, here you need to refer to the safety information. In particular, concrete must be cut towards itself.

In this case, sparks will fly from the side, namely from the manager. In general, cutting materials away from you is not safe, since if it jams, the angle grinder with the disc will fly towards the person operating it. This must be taken into account.

Today, after another argument about which side to put the disk on the grinder, I decided to speak on this topic in writing, even though in my opinion this question is quite interesting. And besides, in the future, rather than start demagoguery again, it’s better to just post a link to this entry. I work in a workshop (mainly power tools) and I see that quite often they wear grinders with “stuck” discs. Sometimes it jams so much that you have to disassemble the gearbox and, holding the driven gear in a vice, unscrew the nut with a healthy gas wrench. It is interesting that the nuts only jam on machines in which the disk is installed on the right, that is, it “sparked” from the machine. If we consider that under NORMAL load the torque on the spindle is small, then such a bad self-tightening should not happen, but it does happen, why? — Because of shock loads, which are generally a common occurrence when installing a disk on the right. It’s easier to explain why this happens with this example (too lazy to draw) - we start the motorcycle, and, holding it by the steering wheel, we try to cause the drive (rear) wheel to slip. So, the best analogy with a sharp angle grinder with a disc “pull away” will be if we hold the steering wheel standing in front of the motorcycle. Try it, you will definitely like it. If you like to cut on your own, you will definitely like it. There is an important caveat here - the higher the support and the shorter the base, the more interesting the effect. And yet, the center of mass of the angle grinder and the hands that hold it is above the cutting plane (more precisely, the force vector), this is what leads to strong jerks, and as a result, often to breakdowns and injuries. In short, it turns out that working with an angle grinder “on your own” is something such as dangerous driving with slipping on the verge of “standing on the goat”.

Safety precautions when working with angle grinders

Compliance with solid waste is the key to safe work and high-quality results without negative consequences for health and life.

• Using a protective shield when working with an angle grinder is an important component of the process that cannot be ignored;
• In addition to the mask, before work, put on protective gloves and a suitable suit (preferably a special one) to protect not only your face, but also the rest of your body;
• For each type of material, use only a specially designed disc;
• Check tool fastenings and guards before starting work;
• Before work and after changing the attachment, check the tool at idle speed;
• Work in a comfortable and stable position;
• The most dangerous thing when working with an angle grinder is the rupture of a disk rotating at high speed. Splinters can cause fatal damage, so it is extremely important to purchase high-quality protective materials and use the machine in accordance with safety precautions.

Under no circumstances remove the protective casing from the angle grinder to lighten the weight of the tool!

Remember, life and health are the most important. Do not neglect safety precautions and use protective equipment to avoid damage to the skin and eyes.

The nuances of cutting certain materials

When cutting concrete, use the following recommendations:

• Before starting work, check the concrete for the presence of embedded fittings, pipes, and electrical wiring (using a metal detector to find wiring).
• To reduce dust, moisten the work surface with water (for example, spray it with a spray bottle or brush).
• From time to time it is worth cooling the cutting element with water or air.

If you don’t have a tile cutter, you can also use a grinder to cut tiles. Specialists are able to cut even a perfectly even circle in tiles. Stone and tiles can be cut in two ways :

• 
  Wet (wet the work area with liquid).

• Dry (no moisture).

When using the first option, cooling improves, but there will be a lot of dirt, and with the second there will be a lot of dust. The wet method is used for large volumes of upcoming work, and the dry method is used for one-time cutting. The material should be cut smoothly so that the disc sinks in with slight pressure, almost under the influence of the angle grinder’s own weight. This is required in order to prevent disk distortions and reduce the likelihood of jamming. If the process slows down, you should change the nozzle to a new one. And let's look at other life hacks for an angle grinder with your own hands.

1. When you cut with a grinder, sparks often fly at you. If clothing is flammable, it may cause injury. To avoid the problem, take a regular insole (used sandpaper or a piece of rubber), as well as silicone glue (alternatively, use double-sided tape) and glue it all to the protective casing of the angle grinder. The advantage of the silicone adhesive composition is that it can be easily peeled off from the casing, and the result will be an interesting design. This way you will have a flexible extension of the casing. Such a splash guard will provide good protection from sparks, the main thing is that you choose a non-flammable material.
2. Very durable profile pipes are usually coated with oil, which helps prevent rusting. If you have MDF in your workshop, then you can make a device for stripping the profile pipe (and any other metal) of grease, as well as paint or rust. To do this, take a regular grinder disc and transfer the outer and inner diameters to an MDF sheet. The circle can be cut with an electric jigsaw, but you can also use crowns with a suitable diameter. Next, attach the homemade disk to the device and you can clean the wires. If you take car polish, you can polish the metal.
3. The key to the grinder is annoying because it is sometimes difficult to find when you need it. There is a fairly simple way to disassemble a drive without a key, and we note that it is better to do everything with gloves and with the device turned off.

To begin, spin the grinder disk in the direction opposite to the movement (on the back of the grinder, an arrow indicates the direction of rotation of the disk), make three turns with a sharp movement of your hand. Then sharply twist the disk in the opposite direction. The nut that holds the disk will unwind, and you can easily unscrew it by hand and remove the disk.

1. The method is useful for cutting off the edge of a profile pipe, so that the bottom wall is cut at the same angle as the top (we do everything at an angle of 90 degrees). Take a piece of metal with a thickness of 0.1-0.2 cm and drill a hole so that it stands 0.2-0.3 cm away from the cut disk and screw it with an M8 bolt. Next, make a mark with a square, it should be marked at a right angle, and then cut off the tip of the profile pipe. Please note that this method has two drawbacks - the bolt limits the length of the cutting part, and the size of the disk limits its height.
2. An excellent life hack if you need to cut a round pipe at a strictly right angle using a grinder. You will need a sheet of paper with straight edges, tape, a pipe and a power tool. Wrap the sheet around the pipe, tightly, and after you have made one circle, the edges should meet perfectly. Next, cut everything along the edge of the sheet with a grinder, and get a perfect 90 degrees.

Use an angle grinder only when you know all the operating and safety rules. The working part must rotate in the direction of movement of the tool. Before starting the process, be sure to turn on the device at idle speed. Also, vibration, heating of the angle grinder, and also extraneous sounds should be absent. Wheels should be used without defects, and the most dangerous part may be kickback. To avoid this, try not to jam the wheel when cutting to a fault.

How do safety glasses work?

The means under consideration include the main and fastening parts. The main part is presented in the form of protective glasses and fastenings for them, and the fastening part consists of arms or straps. Glass is the base that provides reliable protection for the eyes. Fastening is mandatory, since the ease of use of protective equipment depends on the quality of fastening.

Additionally, safety glasses may include:

• Ventilation holes
• Arm Length Adjusters
• Fasteners of different types of fastening
• Gaskets made of rubber and fabric base

What is protective glass for such products made from? Various materials are used for this, namely:

1. Glass with impact-resistant properties. The use of glass in the product provides more advantages, since visibility reaches 100%
2. Polymer materials, since glasses made of polymers are popular because they are cheap, but any scratches on the surface distort visibility
3. Plastic, such products are popular in cases where there is a risk of not only sparks and small particles getting into the eyes, but also shavings or splinters
4. Silicone is a material that began to be used not so long ago for the manufacture of safety glasses. Its characteristics can be compared to plastic.

Installing a cutting disc for metal

Before sawing with a grinder, it is important to install the cutting disc correctly. One side is the outer side; most often a sticker or other design is applied to it. The other side is internal.

A pressure washer is placed on the outside, which is secured with a nut. In such a situation, it is easier to unscrew the nut when replacing the disk. Installation with the front side allows you to quickly find out technical information about the wheel, this is necessary when processing parts made of different materials.

Types of safety glasses

Safety glasses are used not only for working with an angle grinder, but also when turning on a grinding machine, where the risk of small particles getting into the eyes is no lower than when operating an angle grinder. The products under consideration are divided into two types according to the degree of protection:

Closed-type glasses protect your eyes not only from small particles, but also from dust, smoke and even chemical formations. To secure this type of protective products, manufacturers offer special fastenings in the form of straps with clamps. The presence of a special regulator allows you to use glasses for different people. When using closed-type products, a phenomenon occurs such as the formation of condensation on the inner surface of the glass. To eliminate the occurrence of condensation, manufacturers have modernized their products by equipping them with special types of spraying. If the product is equipped with ventilation, the cost of such devices increases several times.

Open-type glasses are ordinary products that have special impact-resistant glass. They protect the eyes from direct contact with sparks and particles, but are not able to prevent the entry of smoke and dust. The disadvantage of such products is that when using them, you need to select a specific model according to the size of your head. Only the temples are used to secure the glasses on the head.

Both types of protective devices use different glass materials. Depending on how often you have to use an angle grinder or sandpaper, you need to make the appropriate choice regarding the closed or open type of protective devices.

Why do millions of people cut themselves with sparks and what does this threaten them with?

The grinder is the most popular tool in terms of injury risk. If someday someone makes a rating of tools for people who have crippled people, then the first place will definitely be taken by an angle grinder, far ahead of any other machine or tool. And in most cases this is due to improper operation.

“So, if we cut sparks towards ourselves, the tool will simply be torn out of our hands, and it will fly in the direction opposite to the operator. But if you cut with sparks towards yourself, then during recoil, the tool, which even when the start button is released, continues to rotate by inertia at a speed of 10,000 rpm, will fly into the operator. "

You need to proofread the post before sending it. Moreover, the type that teaches TB. Correct it.

TS, answer a few questions, be sure to answer. Why was it made so that both the handles and the casing were rearranged? How to cut so that the sparks come to you, and the disk is on the right, so that these sparks do not fly into the belly? Why are there no grinders with a different direction of rotation - so that sparks come to you? and the disc on the right side of the grinder, like on a chainsaw?

I don’t use a Bulgarian often, I haven’t studied the safety procedures for working with an angle grinder, I’m an IT guy and more of an office worker, but, straining my brain, I still remember that I always cut so that sparks fly between my legs and it would be somehow even awkward to handle for the instrument.

But I have a Russian device with a small 125mm disk, perhaps with a professional German/Japanese or ultra-cheap Chinese instrument, the situation is completely different and the direction of rotation changes in three planes and the disks themselves are downloaded from the Internet automatically.

>I say this from personal experience, in my memory I had a disk fly apart 4 times “with sparks towards itself” and not once was there even a hint of a fragment flying in my direction

Russian roulette is absolutely safe, according to 83.3% of testers. The remaining 16.7% could not confirm or refute this statement

The grinder is my main tool, I always cut sparks on myself, you just have to stand so that the sparks don’t fly at you. The chainsaw also has sawdust on itself, because in case of an emergency you won’t run into the blade

In short, I saw that they were sawing from themselves for the first time in the Krasnodar region. As long as I lived in Siberia, I never encountered this method. By the way, there is a gas cutter for calm weather, we use it to cut the rails. So it rotates only with sparks towards itself.

Some kind of bullshit. I’m skinny and not particularly strong, but the grinder never flew out of my hands. Although the discs were jammed and scattered, the instrument remained in the hands. Wheels 125, grinders of different power, both old and new with all kinds of protection. But I wouldn’t risk using a big one.

I once again confirmed my decision to never pick up an angle grinder in my life. Thank you)

Hmmmm, I didn’t even think about how to do it correctly, I just screwed the handle on the side where the power button is because it’s more convenient to press from above with your thumb, it turns out I got everything right (:

look at an experienced person

There is an error in your text where it says where the tool will fly when jammed. Both times it was written in sparks on itself.

And then they say that this is all bullshit:

I stupidly reposted crap that contradicts itself. If the disk is stuck, then why the hell does it continue to spin at 10,000 rpm even when the button is released, huh? The root cause of this is that the disk does not spin. Further.

for stupid people, the law is not written, cut as you want

What kind of idiot would even think of cutting himself? You normally cannot control it in this position of the grinder. Fucking.

I have two grinders. One 125 mm with a speed controller and a wide casing and one battery with a 115 disc ryobi usa

I always set the speed to 5000-6000. But this is for leisurely home use..

I recently bought a 230 mm grinder. It cuts sharply and has much lower revs.

It is very dangerous to saw loaded structures.

For example, old batteries in the house are cut down, and pipes can easily jam the disk. Many people don't know this.

I use Klingspor Kroneflex discs. In Kharkov, an original disc like this costs 20 UAH (0.7$). Four times more expensive than a regular disk.

But I take the crownflex because it’s super quality. If it scatters (very rarely), then there is no barrage of shrapnel and all the fragments on the disk remain and are consumed more slowly, it seems to me..

Comparison with protective masks when their use is necessary

Masks are analogues of protective devices. When working with an angle grinder, using a mask is important when you have to work with the tool for a long time every day. The first difference between a maxi and glasses is its size. It protects not only the eyes, but also the entire part of the head. Masks for working with an angle grinder are in demand when an angle grinder is the master’s main tool.

The second difference between the mask is its cost, which is several times higher than the price of the devices in question. Often masks are additionally equipped with protective nets over the glass, which allows for maximum protection of the face and head as a whole. When using an angle grinder, it is important to follow safety precautions, which will allow you to complete the work you started without getting injured.

Invalid equipment

Larger circle: deadly.

Sometimes the user decides to equip the car with a disk of a larger diameter than the standard one... This cannot be done for two reasons:

1. To install the wheel, you will have to remove the protective cover, which is unacceptable due to safety precautions.

2. The linear speed of the cutting edge exceeds 80m/s. The indicated value, of course, is not the limit (according to the standards there is a margin, and a rather large one), however, exceeding the speed means that there will no longer be guarantees of safe operation with loads.

Saw blade: strictly prohibited!

Cases when a user equips an angle grinder with a saw blade, like a circular saw, are, unfortunately, not uncommon. This is very dangerous, since the rotation speeds of an angle grinder and a circular saw are very different. As a result, you can get, for example, a “shot at point-blank range.” The role of a bullet will be played by the flying carbide soldering from the disk tooth. After this, a loss of control over the running machine is likely, which always ends in failure.

Tips for choosing the right glasses for working with an angle grinder

When choosing the products in question, it is important to pay attention to some important points. These points include:

1. The material from which the product is made. You need to choose models that have a high degree of protection. The presence of glasses on the nose when working with an angle grinder does not mean that the person is completely safe
2. Availability of auxiliary protection against ultraviolet radiation. If your job requires you to work every day in the sun with an angle grinder, then it won’t hurt to purchase safety glasses with a special coating against ultraviolet radiation. Models called “Chameleon” are popular.
3. Ventilation. If you prefer a closed type of product, be sure to make sure that the devices are equipped with ventilation. If the product does not have such a function, then you will need to remove the glasses very often to remove condensation from the inside of the glasses

No one can take care of a person’s own health except himself. In order to work with such a dangerous tool as an angle grinder without injuries or other incidents, you need to take a serious approach to the choice of protective equipment. If you do not follow safety rules, even an experienced specialist can get injured.

Operations that can be performed using an angle grinder

An angle grinder (grinder) is a tool with many functions. The drive mechanism in it is represented in the form of an electric motor, which, through a gearbox, begins to transmit movement to a shaft with a replaceable nozzle attached to it. The general view of the device is shown in the photo below. There are different models on the market and in construction stores,

which differ from each other in design and power:

• Household devices.
• Professional.
• With or without handles.

Powerful devices will be powered by a three-phase voltage of 380 V, and household devices will be powered by a standard single-phase network of 220 V. An angle grinder will help you perform the following basic types of work with various building materials:

• Cutting.
• Polishing.
• Grinding.

Interestingly, if you fix the grinder motionless, then on the wheel you can sharpen various tools, such as drills, cutters, knives and other things.

Angle grinders are designed to work with the following materials:

• 
  Metal.

• Concrete.
• Glass.
• Tree.
• Stone.
• Ceramic tile.
• Plastic.
• Brick.

Grinders have become extremely popular in everyday life, as well as in industrial settings. This is due to the fact that they have wide functionality,

and is all due to the following factors:

• A huge selection of different attachments from various materials for a variety of operations.
• Possibility of creating a fixed fixation using special fastening devices.
• The presence in certain models of additional handles, as well as several speed modes for performing work.

It is important to remember that only special discs can be used to process each material.

Design features of safety glasses

You can divide all existing safety glasses into several groups. The distribution occurs according to the type of material, design features and coverage area.

By lens material

Several materials are used to create protective glasses lenses. The most common of them are:

1. Mineral glass. It has been used since the days of the USSR. The main advantages of the material are its high light transmittance and resistance to light impacts (damage, chips, scratches). The main disadvantage is the fragility of the product and the possibility of injury from chips.
2. Organic glass (plexiglass) and plastic. The ability to transmit light of these materials is lower than that of mineral glass, but they are much more flexible. This allows you to withstand fairly strong impacts, and in the event of breakdowns, fragments practically do not appear. But due to a large number of scratches on the surface, the material may become matte, which will make it unsuitable for use. Therefore, the service life of glasses made of organic glass and plastic is not so long. Also, these materials are easily destroyed when exposed to chemicals and at high temperatures (200 degrees).
3. Silicone. This material is the most flexible of all listed. It can easily withstand even very powerful blows, but does not cope well with minor damage. Silicone also quickly deteriorates when exposed to high temperatures (sometimes it can withstand up to 300 degrees, but most often it begins to lose its properties at 200). The surface becomes cloudy over time, so the service life is also quite short.

Choosing disks: how to cut correctly with a grinder

To simplify the process of using the tool, all working surfaces received special markings. This indicator is measured in millimeters. It is enough to take a short glance at the disk to find out everything about its scope of use. The list opens with the smallest of all diameters – 115 mm. It is intended for grinding purposes only. It is strictly forbidden to use it to cut metal products or stone.

The list continues with a diameter of 125 mm, which is considered to be the “golden mean”. As in the first case, the scope of application of such a device is limited. We are only talking about the ability to make the surface smooth with your own hands.

For the grinder to work correctly, you need to choose the right disc

In addition to the two varieties mentioned, there are several additional diameters:

Diameter 150 mm - it is equipped with a tool used for sanding walls and floor coverings

In this case, it is necessary to emphasize that a grinding machine equipped with such a disk is not used for cutting. Diameter 180 mm - such devices are suitable for cutting off part of a not very dense material, for example, aluminum. For cast iron, such a circle will not work, but you can still process the tiles, cut out a small area of ​​the surface, and so on. Diameter 230 mm – used exclusively for professional construction and installation work

This disc is equipped with diamond coating, thanks to which it can do almost anything. Cut bricks whose thickness reaches several centimeters. Clean granite or polish walls.

A stationary or portable grinder needs a properly selected disc. It must be remembered that even the smallest disk cannot be used for processing wood. Before installing a particular disc, you should study the characteristics of the surface being treated.

Tips for choosing the right glasses for working with an angle grinder

When choosing safety glasses for working with an angle grinder, special attention is paid to certain details. These include:

1. Case material. To protect your eyes, choose a model that can reliably protect your vision. The presence of a thin frame with glass does not guarantee the safety of the operator.
2. Additional protection against ultraviolet rays. If you work with an angle grinder often in the fresh air, it requires the presence of sunlight. To protect your eyes from bright rays, it is better to buy protection with a special coating against ultraviolet radiation. “Chameleon” models have become widespread among craftsmen.
3. Ventilation. If a closed model is used when working with an angle grinder, pay attention to ventilation. When there are no holes on the surface, you have to often remove the protection and wipe off condensation.
4. Price. You can't skimp on quality. If, when purchasing, it is clear to the naked eye that a cheap model will quickly deteriorate, it is better to buy a more expensive one.
5. Convenience. Immediately upon purchase, the model is tried on. The frame should not be too tight or restrict movement, or fall off the ears. Otherwise, you will have to be frequently distracted while working, and this can lead to serious injuries.

Important! No one except the operator will take care of eye protection during operation. To ensure tasks are completed quickly and with pleasure, safety precautions are followed.

Tips on how to cut metal correctly

When picking up an angle grinder, you must remember that this is one of the tools that is dangerous in terms of injuries. If the disk breaks, the angle grinder can break out of your hands and hit. When cutting, small parts may fly out; you need to take care of everything.

How to properly handle the unit? Additional security measures:

• After learning how to use the technique, you need to acquire cutting skills. First, you should practice on unnecessary details.
• The heel of the disc cuts metal better and more efficiently.
• When cutting metal, it is necessary to pour water on the material to cool it. This applies to any models.
• In the more expensive ones, everything is automated, rotations occur easily, without clamping the disk.
• Do not turn on the equipment at full power. This leads to rapid wear and tear, as well as rapid breakdown.
• Be careful about wear on the cutting disc. The direction of work requires attention and scrupulousness.

Care and storage rules

Most models, even made from durable material, quickly wear out and fail. Therefore, before each use, you should carefully inspect the frame for damage. If there are severe chips, deep cracks and scratches on the surface, and the elastic band is stretched and loose, it is better to purchase a new model.

To remove adhering dust and dirt, the surface should be periodically wiped with a piece of damp cloth. The hardware store sells special material impregnated for disinfection. It is better to store the protection in a special case that protects it from damage.

To work with an angle grinder, special safety glasses are used. They protect the organs of vision from foreign objects and dust. There are many models on sale, among which it is not so easy to choose the right glasses. When purchasing, it is better to rely on the material of manufacture, price, ease of use and other characteristics. The more carefully you care for your safety glasses, the longer they will last.

Rules for cutting tiles and porcelain stoneware

We asked a specialist how to properly cut tiles and porcelain stoneware with a grinder. There are two options.

1. Using an abrasive wheel for stone (usually these wheels are marked accordingly), and the abrasive is silicon carbide grains, which have a less aggressive shape than electrocorundum, which is used for cutting ferrous metals. The powder of this abrasive is mixed with a binder bakelite resin and a circle is formed from this mixture using one or several layers of fiberglass mesh, which plays a reinforcing role.
2. Diamond wheels, where the cutting elements are grains of industrial diamond, and the binder is cobalt.

Sergey Nemkov, director of the marketing and advertising department,:

If everything is clear with the first option and there are no special options, unless someone wants to take a grinding wheel (unlikely, but there will be no danger) and cut with it, then diamond wheels can be smooth (the so-called crown), segmented (there is a cutouts, which accelerate the removal of cutting products from the cutting zone) and “turbo” circles, where there are notches on the sides of the abrasive layer, which also allow for more efficient removal of products from the cutting zone. Any advantage must be paid for, and all cuts or notches cause increased vibration of the wheel in the cut, and vibration causes chipping. Therefore, for clean cutting of durable tiles or porcelain stoneware, you need to take diamond wheels with a continuous cutting edge - in this case, the number of chips will be minimal. Of course, it would be more economical to make a dozen cuts using an abrasive wheel on a stone. When cutting tiles, it is better to secure the angle grinder in a stand. Holding it with your hand to prevent vibration is much more difficult.