The 3M Roloc TR 777F 3-inch disc (model 76632) combines 3M engineered high-performance ceramic abrasive grain blended with aluminum oxide for durable, efficient cutting and finishing. Designed for both stock removal and finishing, the heavy-duty polyester backing is water-resistant and withstands medium-pressure applications, trimming, and both wet and dry use. This inner pack contains 50 discs (Item Package Quantity: 50). Compatible with die grinders. UPC: 051144766321. Product Dimensions (box): 13.59 x 11.88 x 6.2 inches; Item Weight (box): 5.3 pounds. Manufacturer references: 3M Abrasive / 3M COMPANY. Part Number (Mfg): 7000045628. Ideal for industrial and professional abrasive and finishing applications where long life and aggressive cut are required.