Crafted with red corundum material, this grinding stone set is designed for polishing, and precise shaping of metal surfaces. The mounted points feature a sleek design with a 3mm shank, making compatibility with various rotary tools for use in and DIY projects. Features -Color:Assorted Color -Material:Corundum, zinc alloy, plastic -Size:4.00X1.00X1.00cm/1.57X0.39X0.39in -material: made from Sturdy red corundum, this grinding set offers exceptional wear resistance, making durability and quick for various tough materials -Universal compatibility: features a 3 mm standard shank design, making it widely compatible with rotary tools and electric grinders for versatile applications -Design: the unique mounted grinding stone structure, restoring their original shine and extending their lifespan -Precision grinding: ideal for moldlevel fine grinding and polishing, this tool makes smooth, finishes on components, enhancing product -Multiscene application: Suit for automotive repair, metalworking, and crafting projects, this set is a sturdy choice for and diy enthusiasts Package list: 100 x Grinding head