These hand held grinding pads have a diamond surface area that is used to take off the rough edges on many of your glass and fused projects. They come in different grits allowing you to remove burrs, flares and sharp points. Unlike the traditional grinder, these do not chip your glass. Starting with a rougher grit then continuing with finer grits, you can prepare you piece to be fire polished. These pads should be used with water to extend the life of the diamond surface, and to protect you from glass dust. These pads are great for plates and bowls that can not be easily taken to a conventional grinder.