30 Pieces 3mm Rotary Grinding Bits for Engraving and Polishing – Silicon Carbide and Diamond

⚙️ General Description 30PCS Rotary Grinding Heads — versatile rotary grinding heads for fine and precise work. Ideal for demanding DIYers, these 3mm bits fit your electric or pneumatic tools (grinders, milling machines, carving machines). Premium material: silicon carbide, electrodeposited diamond, and metal — for high hardness and a long service life. 📐 Technical Specifications Shank Diameter: 3mm Total Length: approx. 4.5cm Package Weight: approx. 111g Contents: 30 different grinding heads Materials: silicon carbide, electrodeposited diamond, metal 🔧 Installation Quick and intuitive installation — no technical skills required. Simply insert the 3mm shank into the chuck of your rotary tool. Secure and stable attachment to all compatible machines. 🎯 Uses: Perfect for fine sanding, engraving, retouching, and finishing on ceramic, glass, stone, carbide alloys, or jade. Offer precise control and consistent performance—ideal for demanding details and localized work. ℹ️ Other information: Colors may vary slightly depending on the screen and lighting. A manual measurement tolerance of a few millimeters is normal. These grinding heads are universal—compatible with all rotary tools that accept a 3 mm shank.