Versatile grinding tool This grinder nut features a 5/811 thread, 45 mm diameter, and 9.5 mm thickness, making it suitable for a range of grinding and polishing tasks. Durable and reliable Made from strength alloy steel, this nut resists deformation and provides longlasting performance in demanding work environments. Easy to use Tighten and release the nut with clockwise and counterclockwise rotations, eliminating the need for a wrench and simplifying your workflow. Efficient ring pull design The ring pull design enables quick installation and removal, streamlining your process and boosting productivity. Key benefits Function: Secures grinding wheels or polishing discs on compatible tools with the correct 5/811 thread. Compatibility: Designed for grinders that accept a 5/811 nut. Size and fit: 45 mm diameter, 9.5 mm thickness; compatible with standard grinding accessories. Material and durability: strength alloy steel provides resistance to deformation and long service life. Performance: Easy, wrench operation reduces downtime and speeds up wheel changes. Use scenarios Metal fabrication and finishing: Mount grinding wheels on angle grinders with 5/811 threads for deburring, shaping, and edge work. Polishing and surface finishing: Install polishing discs on compatible grinders for smooth, consistent finishes on metal, plastic, or composite parts. Rework and production workflows: Quick install/removal of discs during batch processing to minimize tool downtime and keep production moving.