DIA-6HEX Grit approximately 6Φ x 28mm Diamond file 140cm This is a set of 2. - For deburring, polishing, carving, engraving, pattern carving, etc. - Compatible with general metals, non-ferrous metals, stainless steel, cemented carbide, glass, stone, and ceramics. These are unused items, but due to the nature of industrial products, there may be some dirt, scratches, or scuffs due to product precision, transportation, and storage, but there are no problems with use. We would appreciate your understanding before purchasing. The packaging may show signs of aging, dirt, and discoloration. Thank you for your understanding.