Sharpening by grinding is a process of honing an object's edge by using abrasive material to wear away the surface. This method of sharpening is often used on knives, scissors, and other tools that require a sharp edge. The term 'WHET' is used to describe the act of sharpening an object by grinding. Whetting is an important part of maintaining the sharpness of an object and can be done with a variety of materials, such as stones, files, and sandpaper.