To be able to carry out various repair and construction works, the master must use the appropriate types of tools. For an angle grinder (angle grinder), or, as it is called in vernacular, grinders, use various nozzles. This allows you to perform many operations. Such equipment is used both for large volumes of work, and in conditions of home repair.
The largest share of the work performed by the grinder is cutting. To get an excellent result, you need to use high quality diamond blades. To choose the appropriate variety, you must use the advice of experts, user reviews.
General characteristics of the tool
The Bulgarian, as well as many other power tools, has removable elements. This allows for angle grinder a wider range of works. A diamond disc for a grinder requires sharpening or just a timely replacement. Therefore, from time to time, it is simply necessary to purchase new interchangeable nozzles.
It is worth noting that there are simple and diamond discs for the angle grinder. On the latter option, they stop more often, since this is a more durable item of equipment. However, depending on the amount of work, it is necessary to choose the characteristics of the disks.
The greater the load it will be subjected to, the harder and more expensive the tool. It is also important to initially consider in what conditions diamond blades will be used. For each type of material use the appropriate variety.
Types of discs by type of edge
Each cutting element of the grinder consists of a cutting (diamond) edge and a steel body. Depending on the type of work surface, 3 types of removable angle grinders are distinguished.
Continuous cutting discs allow you to do work without losing material. It is important for ceramic tiles, marble. The cut thus turns out equal.
The segmented diamond cutting disc has cutouts for cooling. Therefore, it is used for cutting concrete, brick.
Such a nozzle produces cooling in a dry or wet way. In the first case, air enters the channel grooves to the working surface. The second option involves cooling with water or special substances.
Combined diamond cutting discs allow for dry processing of the material or with the use of water cooling.
Disk application
Depending on the type of material that is processed using angle grinders, a diamond disc is distinguished for metal, concrete, ceramic tile, wood or even glass. These removable elements can be universal or highly specialized. Therefore, when choosing, the manufacturer's recommendations should be taken into account.
For dense, hard materials, the cutting edge is made of softer steel. This allows the surface to release a new layer of diamonds during abrasion.
According to the method of application, there are three types of tools. This is a diamond blade for sharpening, cutting and grinding. For each operation, you need to choose your own variety.
Grinding will allow polishing the processed surface. Cutting is most often used to separate ceramic tiles or other materials into pieces of the required size. Sharpening is carried out only when the grinder is stationary. At the same time, it is possible to process drills, saw chains, etc. In order to work as safely as possible, it is necessary to strictly adhere to the manufacturer's recommendations.
The principle of operation of the disk
The performance that a diamond segment or solid blade possesses depends on the manufacturing technology of the cutting edge. It differs by the principle of applying the substance, its granularity, as well as by the bonding element.
The layer of industrial diamonds should not only be surface. The entire cutting edge should have this material in its structure. In this case, the operational resource increases significantly. This is especially important for the processing of foam concrete, brick.
With this treatment, a diamond cutting disc does not cut so much as grinds the surface. In this case, the working layer is also erased. During processing, the internal structure of the material is exposed. Therefore, it is important that diamond spraying is distributed throughout the entire thickness of the disk.
Diamond Segment Technology
Depending on the processing conditions, diamond spraying can be applied by different methods. When choosing a drive, this must be taken into account. Otherwise, the incorrectly selected removable element will not work for long.
If diamond spraying is applied to the surface using silver solder, this type of tool is used exclusively in the presence of water cooling. Without it, such a diamond disc for a grinder quickly collapses.
If the surface is sprayed by laser welding, the product is considered durable. It is used in dry processing. This is a very durable type of application of industrial diamond chips.
When using geometric closure, the coating is applied by heat treatment with a binder. This version of the disc is used for all types of cutting.
What to look for when buying?
First of all, when choosing a tool, you need to pay attention to the dimensions. The internal diameter for the grinder is standardly 22 mm. If diamond cutting is performed using stationary equipment, you may need a tool with a diameter of 25.4 mm.
External disk size is 115, 125, 230, 350 mm. Depending on the type of work, you must choose one or another option.
Having decided on the dimensions, it is necessary to establish the accuracy of processing. For very precise cuts, continuous spraying should be preferred. Segment varieties are suitable for concrete. It should also be noted that when processing the material with a dry method, it is necessary to stop the operation of the tool every 1.5-2 minutes. Therefore, the process is a little delayed.
Home use discs
In the conditions of home repairs with your own hands, you do not need to purchase expensive professional equipment. The amount of such work is usually small. Therefore, discs for grinders used by home craftsmen may be less hardy.
Their resource is quite enough for cutting a small amount of ceramic tile or shredding a concrete wall. The cost of such a tool will be acceptable to any user.
The diamond disk, the price and quality of which is optimally suitable for home use, is produced by the domestic companies Zubr, Tsentroinstrument, Spartak. The cost of such products with a diameter of 230 mm is approximately 500 rubles / pc. Products of small sizes (up to 125 mm) will cost the user 200 rubles. According to users, this is a reasonable price.
Professional equipment
A professional tool is subjected to long and heavy loads. Therefore, increased demands are made on it in terms of strength. Stationary type equipment or portable professional models can use a diamond blade for sharpening, cutting or grinding for a long time.
Moreover, the possibility of continuous operation is a priority. With large volumes of work, this saves time and increases processing productivity.
Professional diamond varieties of tools are distinguished by their narrow specialization. Their cost is much higher than simple domestic removable angle grinders, but the durability is impressive.
The most famous manufacturers of such discs are Bosch, Distar. The starting price of their products is 2500 rubles. When carrying out work by professional builders, the cost of such diamond discs quickly pays for itself.
Exploitation
In order for diamond blades to serve long and productively, it is necessary to correctly process the material. Having picked up a suitable variety, it is necessary to observe labor safety rules. The Bulgarian, judging by the reviews, is an unsafe tool.
Always use a respirator and safety glasses. Sharpening is carried out exclusively on stationary, fixed types of equipment.
Before cutting it is necessary to mark the place of future processing. Then a guiding incision is made. It is used to process the material to the required depth.
As experienced users note, it should be remembered that the angle grinder must be stopped every 1.5 minutes with a dry insert, and water should be supplied to the disk on time when wet.
Having examined the diamond discs on sale, you can purchase the best option. Existing varieties must be selected in accordance with the profile of the activity. If you plan to perform work at home, it is not necessary to buy an expensive tool. But in the hands of professionals, quality durable discs pay off very quickly. With appropriate use, they will last a long and productive time (reviews confirm this). It is only necessary to follow the rules of work on such an electric tool.