236U | Diameter 6″ | Grit P120 | 50 Discs Per Box Covers a wide range of applications, including finishing, sanding, surface preparation, and grinding. 3M Xtract proprietary multi-hole pattern provides superior dust extraction to prevent loading, increase productivity, and provide a cleaner work environment. Suitable for use on aluminum, carbon steel, composites, wood, fiberglass, gelcoat, paint, and glass. Open coat construction and load-resistant coating prevent clogging to optimize cut throughout the life of the disc. Aluminum oxide mineral is durable, cuts fast, and performs well on many surfaces. Strong C-weight paper backing supports aggressive sanding.