Dewalt High Performance DW8435 Grinding Wheel, Type 27 Pipeline, Outside Diameter: 4-1/2 Inch, Thickness: 1/8 Inch, Arbor Hole / Thread Size: 5/8-11 Thread, Grade: R, Grit: 24, Abrasive Type: Aluminum Oxide, Bond Type: Premium Resin, Max Speed: 13300 Rpm, Mounting: Threaded, Product / Materials Abraded: Metal For Additional Information, click here