Abrasive tools are instruments used to grind, cut, or polish materials by using a rough surface. They are commonly made from materials like diamond, aluminum oxide, or silicon carbide. These tools can be found in various forms, including sandpaper, grinding wheels, and abrasive pads, and are essential in industries such as construction, manufacturing, and woodworking. These tools work by creating friction against the material being processed, effectively removing small particles to achieve a desired shape or finish. They are available in different grades, which determine their coarseness or fineness, allowing users to select the appropriate tool for specific tasks.