Diamond discs on magnetic pads are specialized tools used for grinding and polishing glass, stones, and ceramics. These discs are designed to be used with a magnetic backing pad, which allows for easy attachment and removal of the discs from the grinding or polishing machine. Diamond discs on magnetic pads are available in various grit sizes, ranging from coarse to fine, which determines the level of abrasion they provide. Coarser grits are used for grinding and shaping, while finer grits are used for polishing and finishing the surface to a smooth, glossy finish. These discs are typically used with specialized grinding or polishing machines that are designed for working with glass, stones, and ceramics. The magnetic backing pad allows for easy attachment and removal of the discs, making them a convenient and efficient tool for a wide range of applications in the glass, stone, and ceramics industries.