In grinding operations, the selection of grinding wheels is pivotal to determining efficiency, precision, and cost. As the "cutting edge" of a grinding wheel, the performance of abrasives directly determines their suitability for processing specific materials and the effects they can achieve. This article will provide a detailed analysis of the four most widely used types of abrasives in the industrial sector: corundum, silicon carbide, cubic boron nitride (CBN), and diamond. We will break down their composition and characteristics, focusing on the materials each is best suited for and the results they can deliver, while also offering practical guidelines for selecting grinding wheels to help you make more economical and effective choices in production.