For almost any used construction power tool, you can pick up special nozzles that have specific characteristics and purpose. Let's look at how to choose a metal disc for a grinder, what types of them it can work with.
Types of cutting wheels
They can be targeted to work not only with metal, but also with stone, tile, concrete and brick. Conventionally, they can be divided into polishing, abrasive and diamond cutting wheels for grinders. The first are simply metal or additionally with a fabric coating. Abrasive ones are made from crumbs, gradually during operation, these cutting wheels for grinders are ground. Diamond have small elements of industrial diamond, which has a positive effect on their life and production characteristics.
Choose size
When choosing a cutting wheel for metal, pay attention to its inner and outer diameter. There are nine types of nozzles. On a professional angle grinder, you can install any cutting wheel for metal. Homemade ones usually have an external parameter of 125 millimeters, which allows them to be judged asthe most popular in everyday life. A small circle is called internal, thanks to which the circle is installed on the grinder. It is not recommended to ignore these disk parameters from your attention, since they may differ from what is on the device. Although if we talk about a cutting circle of 125 millimeters, then the occurrence of such a precedent is very unlikely. And if we talk about the use of a well-known angle grinder with an equally popular disc model, then the occurrence of such a situation is generally from the realm of fantasy.
When do we need a cutting wheel for metal and which one to take?
This is the most accessible type. It is designed exclusively for working with metal products. For the most part, they are made abrasive. Thanks to them, you can cut sheet metal, metal profiles, corners, channels. If we consider the most popular grinder in everyday life with 125 millimeters, then we should note the wide variety of range of circles that the market offers us. You can pick up both domestic and foreign samples. But, despite such a variety, a cutting wheel for metal should be used exclusively for this material. If you try to work with a stone with such a disk, then at best it will simply wear out quickly. But it is also possible that it will collapse and cause some harm to a person.
Somewhat different from abrasive diamond discs. Here it is worth paying special attention to their labeling. The letters indicate what was used in the manufacture. Next to themthere are numbers. They indicate the size of the grain. If the numbers are large, then the disk was created to cut ferrous metal. Small - it is aimed at the colored. If the numbers are miniature at all, then this indicates that the circle was created for cutting steel.
Various discs
The choice of circle depends on the amount of work and financial capabilities. The market is widely represented by products of the CIS countries, the European Union and China. The Luga Abrasive Plant and its products deserve special attention. The most successful and at the same time pleasant in quality are the following products:
- "Meadows".
- "Hitachi".
- "Russland".
As for products from other countries, it should be noted that manufacturers from the European Union are slightly behind us in terms of quality. China offers us the least successful assortment. When choosing a disk, make sure that it contains information on compliance with GOST, and the symbols for the scope of application are also indicated. Bypass those circles where the manufacturer is the European Union, and not a specific country. The presence of such a mark indicates that you have a Chinese (read - low-quality) fake. But to avoid unpleasant moments, it is recommended to focus on domestic samples. They are very cheap (which makes them unattractive to fake), besides, they are of high quality. But how much does a cutting wheel cost? The price for abrasive models starts from 20 rubles / piece (if we talk about Hitachi and"Meadows") and can safely exceed the mark of 50 rubles (and if you buy more expensive models or from resellers, then do not be surprised at the cost of several hundred). Diamond ones are more durable when used, so their average price is estimated at 3-4 thousand rubles, and one more zero must be added to the best ones.
Change disk
Periodical circles must be changed as they are used. This is easy to do with a special key. Carefully examine the grinder and find the button, when pressed, the axis is fixed. Press it and, without releasing, start unscrewing the nut with a wrench. Then you should remove the used disk and install another one in its place. Squeeze the nut and tighten it with a wrench.
