An angle grinder is a multipurpose tool that can be used for grinding, polishing and cutting, among other functions. Angle grinders are equipped with a rotating disc that is powered by a high speed motor. This unique power tool constitutes an essential part of most workshops, and thanks to its versatility, it can be used on many surfaces, including metals, tiles and concrete.
Variations in the discs allow for usage in many different situations: smoother and more flexible discs can be mounted for polishing surfaces, while more coarse and abrasive discs favor cutting and grinding. Before buying an angle grinder, it is necessary to understand exactly how to use one, as well as the types that are currently available on the market.
Types of Angle Grinders
Basically speaking, angle grinders can be classified into four major groups in accordance to their power source or the mechanism by which they operate. Knowing each type of angle grinder will allow you to make the right choice based upon the job that you plan to undertake.
Electric Angle Grinders: These are by far the most commonly sold angle grinders on the market. As the name rightly suggests, they utilize electric power to operate. As a result of this, they are equipped with a power cord that can be connected to an outlet or an extension. Electric angle grinders vary based upon the power requirements, with larger models requiring higher power feed. Given their high output, these grinders are usually used on construction sites and other similar projects.
Petrol Powered Angle Grinders: These grinders are cordless and can be used freely without having to worry about an electric power source. Nevertheless, the operator must ensure that no leakages are present and that there is sufficient fuel to get the job done. Petrol powered angle grinders are larger in size as compared to other angle grinders and they are frequently used in the industrial setting.
Pneumatic Angle Grinders: These models are somewhat smaller than the other types of angle grinders. The diameter of their discs are also comparatively smaller and as a result, they tend to spin faster, leading to faster wear and tear, as compared to that of the other types of angle grinders. Pneumatic angle grinders utilize compressed air as their mechanism of operation.
Battery Powered Angle Grinders: Most battery powered angle grinders utilize a rechargeable battery pack, making them both highly portable and convenient for use, even in adverse locations, such as high altitudes where a cordless tool may be required. In the case of most rechargeable battery models, usually manufacturers would include a battery charger with the equipment.
How to Use an Angle Grinder?
In most angle grinder reviews that you may encounter, there is one key element that stands out: the issue of safety. Operators of angle grinders must be fully aware about how to use this power tool and the safety measures that must be taken into consideration so as to prevent any accidents or injury. The following steps are of utmost importance in the operation of an angle grinder:
Choosing the Ideal Angle Grinder: Large projects requiring greater power demands can be better tackled using electric angle grinders, while smaller projects can be completed with other models, such as the battery operated or pneumatic angle grinders. For projects demanding extra portability of power tools in order to cover a greater distance or altitude, cordless versions, such as the battery powered angle grinders are ideal choices.
Selecting the Appropriate Disc: Angle grinders discs should be selected based upon the nature of the project to be undertaken. As mentioned earlier, cutting and grinding metals, tiles and concrete can be done using grinding discs, while polishing can be done with the use of softer padded discs or sanding discs.
Consulting the Manual: Every model comes with specific instructions on usage and precaution. As a result, no one manual covers each and every detail of all angle grinders. It is necessary to follow the instructions as given for every different model before use.
Stabilizing Your Project: Before turning on your angle grinder, ensure that the project you’re about to work on is firmly clamped or stabilized to avoid movement and injuries during use.
Securing the Grinder: Ensure that the grinder is held firmly, and that the disc covers the body of your work before starting. The grinder should be moved in the direction of the handle of the grinder. Once the task is completed, the grinder must be gently lifted away from the project.