Special metal-bonded diamond wheels were invented to grind and shape various kinds of glass. These tools are designed to effectively and efficiently grind glass for uses such as television brown tubes, auto-glass, architectural glass, lens glass, and etc... The applications of metal bonded wheels are unlimited. ln addition to glass grinding, applications have extended to grinding and sharpening carbide tipped wood saws, ferrite, ceramic, tungsten carbide, auto-parts, quartz, stone, and etc....