Sait® 23314 Cut-Off Wheel, Type 1, Outside Diameter: 4-1/2 Inch, Thickness: 3/64 Inch, Arbor Hole / Thread Size: 7/8 Inch A.H., Grade: N, Grit: 46 (Medium), Abrasive Type: Aluminum Oxide, Max Speed: 13300 Rpm, Mounting: Arbor, Product / Materials Abraded: Aluminum (Non-Ferrous Metals)