PROFESSIONAL-GRADE DIAMOND 4" FLAT-TOP ABRASIVES are specially designed for precision and long life. Great for grinding, sanding, and polishing stones—all in one set. Use them also on glass and for sharpening carbide tools such as gravers when combined with our GRS Stone Faceting and Graver Sharpening Fixture Set.

They come already MOUNTED on their respective FLAT TOP discs.

Available in 4" Diameter in the following grades: 120, 400, 1200, and 3000 grit, as well as a 4-GRADE COMBO SET.

With proper use, you can expect an extremely long life and durability.