NortonĀ® NorzonĀ® 61463616463 Mounted Point, Diameter: 7/8 Inch, Length: 2 Inch, Grade: U, Grit: 24, Abrasive Type: Zirconia Alumina, Bond Type: Organic Resin, Max Speed: 19860 Rpm, Bore / Shank Diameter: 1/4 Inch, Shape/Form: A11, Mounting: Mandrel, Product / Materials Abraded: Metals