Norton 3X Sanding Belts 4 in. x 24 in. x 50-Grit 5-Pack are designed for heavy-duty sanding tasks such as stripping, surface leveling, and rapid stock removal. These extra coarse 50 grit belts feature self-sharpening Norzon alumina zirconia abrasives that allow you to complete twice as many sanding projects in half the time d to ordinary belts. The resin-bonded abrasive is attached to a durable heavy cloth backing, ensuring long-lasting performance and fast material removal. Their open coat design helps reduce loading, while the bi-directional splice lets you use the belts in either direction, extending their lifespan. Though priced slightly higher, these sanding belts deliver excellent value through significant time and s. This pack includes five belts made by Norton in the USA. Model Number: