Sait® 70101 Flap Wheel, Small Diameter, General Purpose, Outer Diameter: 3 Inch, Face Width: 1 Inch, Arbor Hole / Thread Size: 1/4 Inch A.H., Grit: 80 (Fine), Abrasive Type: Aluminum Oxide 2A, Backing: Cotton, Bond Type: Resin, Mounting: Arbor, Product / Materials Abraded: Ferrous and Non-Ferrous Metals, Wood, Plastic And Fiberglass