How To Choose The Right Angle Grinder For Your Job

Angle grinders have fast rotating discs that can be used to cut, grind, polish, sharpen and clean a variety of difficult materials including iron, copper, brass, brick, tile, stone or mortar. There are different types of angle grinders on the market, they also have different applications and are suitable for different sizes of discs, so how should you choose the right angle grinder for your job?

1. Small angle grinder

Generally, a small angle grinder will have a brushless motor, which means that there will be no need to replace the brushes on a regular basis. The brushless motor also keeps the angle grinder running efficiently, minimizing heat buildup and ensuring the tool lasts longer. The kickback brake is an essential safety feature that ensures that the angle grinder automatically stops if the cutting wheels seize, which will prevent the tool from falling out and causing serious damage.

2. Medium and large angle grinders

Angle grinders with 7-inch discs are in the medium category, while those with 7- to 9-inch discs are in a large category. It is very common for medium and large angle grinders to use a cord. A good medium-sized angle grinder should include a motor with a capacity of at least 3 HP, while a large angle grinder should have a motor with a capacity of more than 5 HP. It is common for large angle grinders to have overload protection, designed to prevent the grinder from malfunctioning under the enormous weight. Another common feature on medium to large angle grinders is an automatic shutoff that will remind you that the brushes need to be replaced to protect the motor. Some angle grinders also have adjustable side handles that allow for a greater degree of flexibility and maneuverability.

3. Which type of angle grinder to choose?

When shopping for an angle grinder, you need to consider a number of key factors.

a. Disc size

There is a wide range of disc sizes available for angle grinders. The choice of disc size depends on the task you are going to perform, however, you must ensure that the disc is compatible with your angle grinder.

b. The power of the grinder

The power level required for your angle grinder will depend on the size of the disc. Different angle grinders have different power, choose the angle grinder with suitable power according to the disc you are using.

c. The speed of the disc

An angle grinder with a small disc capacity produces a higher RPM than a larger model, however, a larger angle grinder will have more power. Choose the type of angle grinder you need according to the speed and power of the disc.