Klingspor - Discs with F-paper backing made with great and practical self-fastening technology. These discs offer aggressive grinding behaviour due to the self-sharpening zirconium dioxide. They are recommended for applications on steel and stainless steel. These sanding discs with a long service life are suitable for use with hand-held machines such as random orbital sanders or angle grinders. All Klingspor products comply with the highest safety standards, including the oSA regulations and the European safety standard EN 12413. Klingspor is an international family business with more than 125 years of experience in the field of sanding tools for surface processing. Innovation and customer satisfaction are at the heart of the company.