Abrasive discs: what are the best ones for cutting?
What are the best cutting discs?
This is a question that can be asked by two categories of people.
Someone looking for the best disc for cutting operations, who are using an angular grinder for the first time, and therefore need the information to buy the best cutting discs, and to avoid mistakes.
However, even people who use abrasive and cutting discs daily may wonder this, as they are looking for the ideal disc to make grinding work more effective and less tiring. So, let’s have a look at the things to keep in mind when making a choice!
Cutting discs: abrasive and diamond discs
Many different types of discs can be mounted on an angle grinder. Grinding discs, lamellar discs, and so on. In the world of angle grinder cutting, however, it is possible to group the types of discs in two large categories. Diamond discs on one side, and, on the other, abrasive cutting discs.
Diamond discs are designed for cutting materials such as concrete, reinforced concrete, brick, ceramic, and so on. They are expensive, and they last over time, and therefore do not need regular replacement.
When it comes to abrasive cutting discs, things are different.
They are less expensive grinder discs, because they are disposable: the abrasive disc is, in fact, consumed by the cutting process, becoming gradually smaller until it cannot be used anymore, and therefore a new one needs to be mounted.
It is, therefore, clear that, in choosing the best cutting disc of this type, it is best to opt for products with high durability, to make disc replacement a less frequent need.
Abrasive cutting discs, in any case, find their most specific use in the cutting of iron, steel, stainless steel, cast iron, aluminium, and other ferrous materials, as well as, in some cases, in the cutting of bricks and tiles.
Factors to consider when choosing cutting discs
Even before taking into consideration the performance of the best cutting discs, it is best to evaluate what the characteristics of the disc best suited for your angle grinder are, as well as the work it will need to perform.
All abrasive cutting discs have a metal centre created for fastening to the angle grinder: depending on the type of fastening system present and the angle grinder’s protection, it is possible to choose between discs with flat or lowered centres.
Of course, that is not all. When deciding on the type of angle grinder best suited for your current needs, it is best to pay attention to the size of the discs, i.e., their diameter.
In fact, there are grinder discs with a total diameter ranging from 75 mm up to 230 mm (2.9 to 9 in), to choose from depending on the size of your angle grinder.
The dimensions of the central hole for the fastening, which can range between 6 mm and 23 mm (0.2 to 0.9 in), also vary.
And, before proceeding with the purchase, the specific use which will be made of the abrasive disc should also we considered: some cutting discs are indeed designed for specific materials, while there are others, known as “hybrid”discs, which allow for both grinding and cutting operations.
Abrasive discs: looking for the best cutting discs
Those looking for the best cutting abrasive discs, we believe, should have no doubts about it: the best grinder cutting disc on the market, taking into account all the different factors – from performance to purchase price – is 3M’s Cubitron II cutting disc, an abrasive disc made with ceramic grain.
Available in different sizes according to your needs, it is characterized by the presence of triangular-shape ceramic grain, which allows for a slow and uniform wear-and-fear, as it is cool-running.
Cubitron II cutting discs have been developed by 3M for cutting stainless steel, mild steel, and aerospace-grade alloys. Among the advantageous features of these discs is the self-sharpening of the ceramic material, which, cut after cut, rather than tearing apart, self-sharpens, always ensuring fast, precise, and easy grinding operations, without requiring much effort from operators.
The uniform wear of the disc does not compromise its performance, making the Cubitron II cutting abrasive disc the best choice on the international market.
