The Metabo Special Fleece Compact Discs "Unitized" (626375000) are designed for cleaning and polishing surfaces, as well as smoothing weld seams. They are made from pressed fleece material with hook and loop backing, which helps reduce the number of working stages required. These polishing discs are suitable for alloy and high-alloy steels, colored and light metals, chrome and nickel steels, titanium, and steels