CARBORUNDUM 8" x 3/4" x 1" Fine Grit Aluminum Oxide Bench Grinding Wheel USA NOS $18.99 Country/Region of Manufacture United States Wheel Diameter 8 in Grade Fine MPN HC40 Abrasive Material Carbide Center Hole Size 1 in Brand Carborundum Wheel Thickness 3/4 in condition New I picked this up at an estate sale.Never used, in great shape, just some dirt or grease spots mostly on the box.Has original box which does show some wear from storage.Please check out all the pictures and ask any questions.