Premium Carbon Steel Construction: Crafted from high strength carbon steel, these angles grinder sanding discs excellent durability and wear resistance for long lasting in metal rust removal and wood sanding applications Accuracy Surfaces Finishing: Specially engineered disc textures provide uniform sanding that minimizes surfaces scratches, excellent finishing for both metal and wood materials Secure helical Design: The innovative helical mechanism ensures firm disc attachment during high speed operations, accidental detachment and enhancing user, especially beneficial for beginners Generic angles Grinder Compatibility: The sanding discs are compatible for most standard angles grinders on the markets, making it suitable for various professional and home workshop applications without compatibility concerns Double Purpose Efficiency: Expertly designed for both metal rust removal and wood sanding tasks, this versatile set features a helical systems that enables quick disc changes without additional tools, perfect for craftsmen and craft enthusiasts, Manufacturer: RGYBAO