Applicable: Wood Board, tea tray, root carving and other wood grinding Hardness: High temperature quenching Features: Suitable for rapid removal and shaping, especially for convex and concave areas. Provides rapid material removal, saving your time and effort, suitable for curved work. Tungsten carbide coatings consist of hundreds of extremely sharps teeth that rapidly remove stock and outlasts hundreds of sandpaper pads. Tungsten carbide teeth give you a outstanding wear-life. Should only be used on non-metals or non-metal materials, suitable for wood and other materials. Fit for angle grinder and it is easy to operate it. Outer Diameter 85-100(mm) inner diameter 25(mm) disc diameter 25 Max Speed 3000(RMP)