Dewalt High Performance DW4624 Grinding Wheel, Type 27, General Purpose, Outside Diameter: 6 Inch, Thickness: 1/4 Inch, Arbor Hole / Thread Size: 7/8 Inch A.H., Grade: R, Grit: 24, Abrasive Type: Aluminum Oxide, Max Speed: 10100 Rpm, Mounting: Arbor, Product / Materials Abraded: Metal For Additional Product Information, Click Here