Features: Engineered for durability and efficiency, these 115mm/125mm metal sanding flap discs deliver low vibrations and extended lifespans, offering 4piece sets with 40/60/80/120grit for versatile grinding and polishing. Crafted from high grade steel with aluminum abrasives, these angles grinder wheels blade feature reinforced fiberglass backing for enhanced safety and optimal performances on metal, wood, and plastic surfaces. Ideal for enthusiasts, professional craftsmen, and workshop applications, these flap sanding discs cater to users needing reliability, long lasting tools for precise metalwork and surfaces preparation. Tackle stainless steel refinishing, automotive repair, or woodworking projects effortlessly with these grinding discs, designed for seamless operate in garages, construction site, and home workshops. Optimized for 115mm/125mm angles grinders, these multigrit sanding flap discs ensures rapid removal while maintaining consistent finish quality across curved edges and flat surfaces. Specifications: Component: zirconia most speed: 16000rpm Scope of application: all metals Diameter: 115mm/4.53inch,125mm/4.92inch (Optional) Shaft hole size: 22mm/0.87inch Suitable for 115mm/125mm angles grinder; Package Includes: 4pcs Flap Discs note: Please allow 1-10mm errors due to manual measurement. Due to the differences between different monitors, the picture may not reflect the actual item color.