NortonĀ® GeminiĀ® 61463622349 Grinding Cone, Type 16, Diameter: 1-1/2 Inch, Length: 2-1/2 Inch, Grade: R, Grit: 24, Abrasive Type: Aluminum Oxide, Bond Type: Resin, Max Speed: 24190 Rpm, Bore / Shank Diameter: 3/8-24, Shape/Form: Round Tip, Mounting: Threaded, Product / Materials Abraded: Metals