Camel Grinding Wheels® 39932 Flap Wheel, Outer Diameter: 2 Inch, Face Width: 1 Inch, Grade: Medium, Grit: 60, Max Speed: 25000 Rpm, Abrasive Type: Aluminum Oxide, Mounting: Shank, Shank Diameter: 1/4 Inch, Product / Materials Abraded: Ferrous And Non-Ferrous Metals, Stainless Steel, Iron, Brass, Aluminum, Plastic, Fiberglass, Wood And Glass