NortonĀ® No-FilĀ® 66261140517 Abrasive Disc, SG A975, Open Coat, Diameter: 5 Inch, Grade: P, Grit: 80, Abrasive Type: Ceramic Alumina, Backing: Paper, Backing Weight: B, Product / Materials Abraded: Auto, Medium Grit, Surface Preparation, Dry, Metalworking, Portable, Wet, Woodworking And Vertical Shaft Grinder