Why are angular grinding machines used

Corner grinding machines are popularly called «Bulgarians». These machines are used in order to cut hard metals and stone. They are also used in order to carry out peeling, cleaning, grinding of surfaces, etc. D. The working tool «Bulgarians» is an abrasive disc for increasing and grinding a particular type of material. Each disk can only be used for a certain material, otherwise you can not only lose the disc but and injured.