Angle Grinder 125 Mm Which Is Better

Angle grinder 125 mm which is better angle grinder 

Angle grinders (short. Angle grinder) are necessary not only for professionals in the field of construction and repair, often the question of how to choose an angle grinder for the home may arise for home craftsmen. Let’s define what the optimal tool should be.

Basic requirements for an angle grinder. Are expectations aligned with reality?

To begin with, it will be useful to define the terms and principle of the tool. So why exactly “Angle Grinder“? The fact is that the first angle grinders were imported to Russia from Bulgaria, and that is why they received a consonant name among the people. The angle grinder consists of a housing with an electric motor, a rotor, a shaft with a thread for attachments, a protective cover and a handle. This is a short list of the main components, of which, of course, there are much more. Distinguish between corded and cordless angle grinders, professional with high power, medium and small for small needs. Actually, it is just the power of the angle grinder, its dimensions and the diameter of the casing that determine the selection criteria. Although there are other factors, which we will discuss separately below.

The main quality that every craftsman expects from a tool is reliability. This concept includes both wear resistance and ease of maintenance of an angle grinder, and resistance to high loads. As a rule, it was believed that grinding machines of well-known foreign brands possess such properties, the high rating confirms the fact that they are often counterfeited in China. Recently, however, the domestic industry has begun to gain momentum, and the production of power tools has reached a new quality level. Now Russian stamps have also begun to be forged.

Household angle grinder

The second largest angle grinder company is Interskol. The production base of this manufacturer includes the Bykovskiy Power Tool Plant (abbreviated as BEZ) and the Interskol-Alabuga complex in the Republic of Tatarstan. True, some models are made from foreign parts, so they can not always be called domestic. Some of the products of this company are produced in the shops of the Izhevsk Mechanical Plant, where all units and electronic components are manufactured. There are also production facilities in Spain and China.

Another domestic enterprise that produces high-quality angle grinders is the Konakovsky Plant of Mechanized Tools, but it specializes mainly in pneumatic devices. Also worth mentioning the company Fiolent, recently confidently advancing to one of the leading positions in the Russian market. The fact is that the tool produced by this manufacturer is quite reliable at a low cost. True, this brand has not yet become popular.

Large or small angle grinder. Which size should you choose?

Even for beginners who first take a power tool in their hands, it is usually clear that the more powerful the device, the heavier and larger it is. There is another factor with regard to the angle grinder. The diameter of the attachments that can be used depends on the power of the machine. The corresponding dimensions are given to the protective casing, and a disc with a diameter larger than the allowable one simply cannot be delivered. So which angle grinder should you choose? It all depends on the nature of the work that you have to face.

Medium angle grinder

If you plan on sawing brick and concrete and sanding, as well as cutting thin sheet metal, a 600 to 900 watt tool is sufficient. But with thick welds, a low-power angle grinder, as we have already mentioned, will not cope, as well as with thick steel, so for channels and I-beams it is better to choose an angle grinder from 1 kilowatt and above. Power also matters when choosing attachments. If you need to cut through a thick concrete slab, you will need a disc about 23 centimeters in diameter, a small nozzle within 12.5 centimeters will not do the job.

As for the most popular discs for household needs, these are just diameters from 115 millimeters to 125. Accordingly, a small angle grinder is required to work with them. This option is very convenient, since you can work with a small angle grinder with one hand, just holding it by the case (this will not work with a professional tool). That is why the rating of grinders with 125 mm discs is very high. Also, in order to cope with the grinder without resorting to the second handle, it is advisable to buy a device with speed control.

Variable speed angle grinder

For small angle grinders there are very convenient attachments with a diameter of 125 millimeters with the so-called “Velcro”, on which you can apply and, pressing, instantly fix the emery wheels provided with a corresponding coating on the back. Sanding attachments of this type are suitable for both wood and metal. As for other discs, metal with spraying, abrasive or petal from overlapping pieces of sandpaper, their size and thickness depend primarily on the size of the protective casing, without which it is absolutely not recommended to work without.

What to look for when buying an angle grinder?

First of all, the instrument must be wired. The cordless angle grinder is convenient, but the operating time is very short due to the strong resistance of materials during cutting and significant friction during grinding. Therefore, if mobility is needed, the wireless device must be kept as a backup, and the network must be the main one. Now about how to choose the right angle grinder. Make sure that it has a soft start, that is, a gradual, not abrupt, increase in speed, otherwise there is a risk that one day, when turned on, a disc with an imperceptible defect will fly apart. Also pay attention to the speed limit. If you purchase a tool without changing speeds, and take nozzles only within the specified limits, otherwise the result will be the same. Destruction of the disc during operation.

The presence of an option to automatically turn off the brushes

A rather important factor when choosing is the presence of an automatic shutdown of the brushes at those moments when the power supply is briefly interrupted in the network. This will protect the tool from breakage due to a sharp decrease in speed and the next moment the same sharp increase. Another very convenient function is to fix the start button, it is not available on all tools, which is due to the safety of the operator, but for long-term work, this option is very important so as not to tire the hand. By the way, start fixation is usually present on angle grinders, starting from a medium power level; on very small ones, it is not necessary.

Some models have a rather interesting ability to remove and put on the casing without using wrenches, which can also be an important criterion when choosing a tool. The fact is that it is the complexity of installing the protective shield that prompts some operators to neglect it when changing discs frequently, which leads to injuries. Be sure to be guided by the fact that the grinder has dust protection, at least for brushes, so that the tool does not jam during operation. But it is better if the entire stator is protected by the housing, that is, the main part of the angle grinder to which the rotor is attached. However, if the question is how to choose an angle grinder for the home, and not for the shop, you will not have to deal with a lot of dust.

Angle grinder for household needs. Summing up

So, if you are not a professional, and you need to make a choice of an angle grinder for work in the house or in the garage, and not for repair or construction, but for various small tasks, for example, to remove old varnish from furniture, choose a small tool. Ideally, you want an extremely light sander that can be held without strain with one hand, without the need for an additional handle.

Adjustment of the rotational speed of the nozzle is necessary if only because the 2nd or 3rd speed is sufficient for grinding with emery wheels, on the 6th the tool is already poorly controlled without additional fixation. And many household chores require the other hand to hold the work surface or hold the operator on the stairs. If you have a suburban area, mobility will not be superfluous, and the best angle grinder for this option is cordless. But you should choose those that have a spare battery included in the kit, so that while you work, you have a backup battery, after installing which you can charge the main battery. However, in the presence of a multi-meter extension cord, it will be much more productive to use the network model.

And, finally, if you do not intend to cut large parts, a fairly low-power angle grinder with a maximum diameter of 125 mm nozzles. Actually, she can also cut metal, the depth of the cut will be about 4 centimeters, which is good when performing small household tasks. The main thing is to measure the power and size of the disks. The larger the tip at low power, the higher the load on the tool.

Ergonomic body and handles

Since the angle grinder is a hand-held tool, comfort and weight are not the last factors when choosing. Particular attention should be paid to the convenience of the handle-holder, because it is with its help that you will control the process of cutting and grinding. Also, the handle will take on most of the vibration, so many manufacturers are trying to make it anti-vibration.

Size and Weight Selection Angle Grinder Angle Grinder

The greater the weight and size of your angle grinder, the more difficult the task will be. And vice versa. If you need a tool for everyday tasks of average difficulty, it is better to choose an angle grinder with 115 mm. Cutting with such a small circle will definitely not be convenient and these types are often used for grinding.

Angle grinder 125 mm. The most popular tool among the people. Such devices are small, not heavy, comfortable, have decent power characteristics and, importantly, inexpensive. Such an angle grinder is convenient for both grinding and cutting. Disc size 180 mm. This is already a lot for cutting, and such an angle grinder is suitable for construction work. This size can be used to cut thick pipes and bricks.

Angle grinder 230 mm. This is the maximum that can be found by the diameter of the circle. Bricks, tiles, boards, pipes can be cut with such a tool without much effort, but it is better not to use it for grinding.

Attachments, discs and discs for an angle grinder

When working with an angle grinder, you should also pay attention to the diameter of the cutting disc (or grinding wheel), since it depends on it the thickness of the material, for which you can use this or that tool.

Angle grinder cutting discs have diameters from 115 to 230 mm. Here you can notice the following feature: the more power the angle grinder, the larger discs it can work with. That is, the maximum wheel diameter is directly proportional to the power of the grinder. Note that the most popular are angle grinders with a disc diameter of 125 mm. Such a hand grinder. The most suitable option for most household needs.