Honing stones are tools used to sharpen and refine the edges of blades, such as knives and chisels. They are typically made from materials like aluminum oxide, silicon carbide, or natural stones. The process of honing helps to align the edge of the blade, making it sharper and more effective for cutting tasks. These stones come in various grits, which indicate their coarseness. A lower grit number is rougher and removes more material, while a higher grit number is finer and polishes the edge. Regular use of honing stones can extend the life of cutting tools and improve their performance.