Choose a grinder according to the rotation indicator of disks
The optimal speed during cutting is an indicator of 80 m/s. Also do not forget that the discs during work are erased and over time require more revolutions for effective cutting. An example of a similar model of a grinder with the speed is Bosch GWS 6-115E. With a mass of 1.4 kg, it has a power of 670 watts. The number of revolutions can be installed from 2800 to 11000 rpm. A special handle makes the tool resistant to vibrations by 70%. The control panel is very convenient.
The next question when buying an angle grinder is a manufacturer company. It is best to trust popular belief and give preference to the Bulgarians of famous firms. The same rule concerns any growing, whether it is the production of rollers or household appliances. After all, they undergo enhanced quality control, insured by you from the situation of random disk falling on your limbs. And this is one of the few positive qualities.