Depressed Center Wheel, Type: Type 27, Wheel Type: Rightcut Cut Off, Diameter: 9", Thickness: 0.060", Arbor Size: 5/8"-11, Abrasive Material: Aluminum Oxide, Grit: 24, Grade: Very Coarse, Max. RPM: 6600, Series: Gemini, Application: Ferrous Metal, Gray Iron, Stainless USA