Lasts up to three times longer than the standard coated hand sanding sheet. High-quality metalwork requires a high-quality finish, and for that you need a good, even abrasive. The Expert N880 is not just good when you first take it out of the box. It stays good over a long service life and delivers an even finish. The Expert N880 non-woven disc is an example of the Bosch Surface Structure: it combines the latest sanding technology and manufacturing expertise in a single, particularly durable non-woven. The three-dimensional product with cross-layering technology saves professionals money thanks to its long-lasting performance. Plus, they no longer have to worry about hand sanding sheets losing grit. Whether you're finishing a metal component with precision, cleaning a workpiece or sanding a hard-to-reach surface, the Expert N880 is the best choice for the long term. Simple attachment with hook and loop fastener. Grit: 100, hardness: coarse.