Grinding is a process of machining a material by separating particles with a cutting tool with a geometrically undefined blade. The cutting tool is called a grinder and it consists of interconnected, natural or artificial, grinding beads. It is most commonly used for the finishing of hard surfaces of straight, complex or cylindrical shape. In the grinding process, particles are usually separated by cutting, which results in small grinding forces. Grinding gives high accuracy of dimensions and quality of surfaces with narrow tolerances. The bearing capacity of the surfaces is up to 40%. The processing material addition is from 0.1 to 0.2 mm. Classic grinding is used as a finishing process and is carried out in order to achieve the accuracy of machined surfaces and the possibility of machining hard surfaces as well as surfaces with complicated shapes. Today, as productivity tends to maximize productivity, modern grinding processes have been developed that have replaced some other particle separation processes and are beginning to be applied in previous treatments.