The grinders are very versatile tools that are used to cut, grind, polish and other tasks. For this reason, it is a very popular tool both in the professional world and in the world of DIY and DIY as we gain experience. The choice of the grinder will depend on the use you are going to give it.
Types of grinders according to size
The mini-grinders have a diameter between 115 and 125 mm and powers between 500 and 1000W. They are recommended models for small jobs at home such as stripping wood or metals, cutting ceramics and tiles, polishing and working with low thickness materials. If you have to cut an extremely thick material, you will need a professional grinder. Choose this type of grinder for work on small surfaces.
Also known as angle grinders. They are larger and heavier than the previous ones with a diameter around 230 mm and powers from 2000 to 2600W. They are much more robust and are used for the cutting and roughing of construction materials and metals.
Type of power
In the market you will find electric, battery or compressed air grinders. The most common are cable grinders because they have more power than wireless, have a constant speed and allows work for longer periods.
If you are going to do heavy work, the ideal is an electric grinder. If you want to work anywhere without relying on an electrical outlet, you can choose a battery version. Compressed air powered grinders can be very powerful and are used in the professional sector. Any user who has an air compressor in their shop and who uses a wide variety of pneumatic tools can use this type of grinder.
Aspects to consider
Speed: Normally, the grinders have a unique speed of work. If you want to use it for various functions, such as polishing or precision work, opt for a grinder with speed regulation.
Safety: Safety with a grinder is important. Look for a machine with progressive start-up and protection against over-intensity or involuntary ignitions.
Accessories: Look for quality accessories. Additional grips, disc protectors with tool-less adjustment systems and the ergonomics of the main grip must be taken into account. In the case that you buy a mini grinder, a reduced perimeter will give you better control of the tool and allow you to work comfortably.
Discs: There are different types of discs suitable for the material you are going to cut – stone, metals, stainless steel, ceramics, etc. Each disc has its corresponding measurement and you must use the appropriate disc to avoid damaging the disc or the material to be cut.
How to work with a cutting angle grinder
- Work in a comfortable position and without interfering with the cutting line. Ideally, you should place yourself parallel to the cut.
- The cutting direction must always be in the same direction as the rotation of the disc. This way you will avoid the so-called rebound effect.
- Always work with the disc protector firmly fixed and oriented so that the dust or sparks move away from us.
- Hold the machine with both hands.
The use of protective glasses, a mask and gloves when working with a grinder is mandatory. To know more details review of the best angle grinder check it here.