They are for deburring, polishing, flatwork, analysis, and other sanding applications. Standard belt sander sizes start at 1″ – 14″. Both wet and or dry sanding units are available. The Kalamazoo Industries heavy-duty belt sanders are powerful units and are going to work with all belt types. This option lets you sand different types of materials. With the right sander and belt, the sanders can sand steel, aluminum, glass, and wood.