Long lifespan when grinding various materials. Film backing for a high material removal rate and a great finish. Not all grinding discs are equally suitable for different materials and applications. The EXPERT O780 Foil is versatile, tear-resistant, and durable, allowing you to easily carry out various wet and dry grinding tasks. A single grinding disc that can remove old paint and rust from metal and wood while also providing a great finish to your workpiece's surface. 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 grind a variety of materials repeatedly. Durability without turbulence thanks to Bosch Ceramic Technology.