English: This image shows a collection of sintered metal-bond diamond and cubic boron nitride (CBN) grinding wheels used in industrial grinding and machining applications. Sintered metal-bond wheels are manufactured by bonding abrasive particles such as diamond or CBN within a metal matrix through a high-temperature sintering process. These tools are commonly used for grinding hard and brittle materials, including ceramics, carbide, glass, stone, and hardened steels. Metal-bond grinding wheels are valued for their durability, dimensional stability, and ability to maintain abrasive grain retention during demanding grinding operations. Source: https://ukam.com/diamond-cbn-wheels-metal-bond/