Composite Multifunctional Cutting Saw Blade: : Size 4" x 0.1" x 4/5" (100 x 3.5 x 20mm), 20mm the inner hole size. Our 2mm (0.08 inch) ultra-thin grinding discs is heat-resistant and wear-resistant, with uniform cutting force, good flatness, straighter and faster cutting material, low noise when cutting, and good cutting effect. Suitable for use with 100-type angle grinders and stone cutting machines. Indestructible Disk for Grinder - Durable and Long-Lasting: : The blade is covered with high-density emery, ensuring sharpness and durability. Green indestructible disk using diamond 2mm high manganese steel matrix, new brazing process, no deformation, no cracking, safer in use. The red diamond saw blade main body of the blade adopts selected high-strength Emery and synthetic gold steel plate, which has the characteristics of high hardness and strong toughness. Accurate Cutting - Easy to Install and Use: : Reinforced core steel ensures stable cutting, and a Stiffening flange in the center ensures rigidity and straight cuts. Cut without fear of damage or shattering - our unbreakable grinder disc cuts through anything like butter. Universal for dry and wet cutting, Matches with the hand-held machine and Works with Tile Saw Angle Grinder, and marble machines, making the cutting surface smoother and more accurate. Indestructible Disk - Smooth Cutting Surface: :Super thin diamond blade can achieve fast, stable and accurate cutting effects, improve cutting efficiency, reduce cutting time. Compared with traditional cutting discs, our indestructible cutting off disk are more wear-resistant and efficient. Diamond cutting disc can be used for long-term continuous cutting in various working environments, which are more convenient, safer, more wear-resistant and have a longer service life. Indestructible Disc - Wide Applications: : Green indestructible disc for grinder is suitable for cutting a series of wood such as solid wood board, paint-free board, plywood, composite board, etc. It can also cut PVC engineering pipes, plastics, rubber, aluminum alloys, steel nails, etc. Our red cutting disc suitable for various materials, including ceramic tiles, porcelain, slate, and more, these cutting discs are perfect for both professional contractors and DIY enthusiasts.