Features： 1、Main Application: This grinding disc is suitable for surface decoration, polishing and deburring of metal, stainless steel, steel, copper, wood, plastic and other materials. 2、Fine Workmanship: The disc is well made with uniform particles and progressing fine polishing, incisive for multiple work. 3、Carborundum Material: Made of carborundum material, this grinding disc is strong and sturdy, wear resistant, ensures a long life span. 4、 Performance: The grinding disc can provide you with fast grinding speed, works out with flat and no burr grinding surfaces. 5、5Pcs: There are 5 pieces grinding discs in the package, ideal for long term use and make replacements. Specification： Item Type: Diamond Grinding Disc Product Material: Carborundum Aperture: Approx. 16mm / 0.63in Diameter: Approx. 100mm / 3.94in Thickness: Approx. 1.2mm / 0.05in Hardness: 60 Application: Suitable for surface decoration, polishing and deburring of metal, stainless steel, steel, copper, wood, plastic and other materials. Package List： 5 x Diamond Grinding Disc