Long lifespan when sanding various materials. Film backing for a high material removal rate and a great finish. Not all sanding discs are equally suitable for different materials and applications. The EXPERT O780 Foil is versatile, tear-resistant, and durable, allowing you to easily handle various wet and dry sanding tasks. A single sanding disc that can remove old paint and rust from metal and wood while also giving your workpiece a great finish. With the EXPERT O780 Foil, you can accomplish all these tasks effortlessly. The disc combines Ceramic Technology – strong, self-sharpening ceramic grains – and our innovative film backing to ensure you can sand a variety of materials repeatedly. Durability without swirl marks thanks to Bosch Ceramic Technology.