Monster 5.5 in. Diamond File for Granite, Marble, Porcelain, Ceramic and Stone Angled Tip with Different Shapes 10-Piece Set

Diamond Files are used for hand sanding and detailing of stones, concrete, glass, ceramic, porcelain and other types of materials. They are manufactured by electroplating diamond on to steel blanks using nickel. The smaller the particles, the finer the grit of the file. 46 grit is very aggressive and provides efficient removal of material.