Vacuum Brazed Round Grinding Head Abrasive Style:20+30mm (Coarse Sand+Fine Sand) - 4Pcs Material: Carbon Steel + Steel

Material: Carbon Steel + Steel

it has high hardness and toughness

reduces vibration and holds your phone more firmly

Its multipurpose design makes it an essential tool for any woodworking workshop

Vacuum Brazed Round Grinding Head Abrasive Style:20+30mm (Coarse Sand+Fine Sand) - 4Pcs Material: Carbon Steel + SteelFEATURES BRAZED COATING: The brazed coating ensures superior hardness and cutting performance, allowing for efficient grinding, carving, and shaping of tough materials. M10 THREAD: Equipped with an M10 thread for secure attachment to rotary tools, providing stability and reducing vibration during use. VERSATILE APPLICATION: Suitable for use on a wide range of materials including metal, stone, ceramics, and more, making it a versatile addition to your