NortonĀ® GeminiĀ® 66252823602 Cut-Off Wheel, Type 1/41, Small Diameter Reinforced, Rightcut, Outside Diameter: 4-1/2 Inch, Thickness: 3/64 Inch, Arbor Hole / Thread Size: 7/8 Inch A.H., Grade: N (Medium), Grit: 46 (Medium), Abrasive Type: Aluminum Oxide, Bond Type: Resin, Max Speed: 13580 Rpm, Mounting: Arbor, Product / Materials Abraded: Metal/Stainless Steel