Ceramic Cylindrical Grinding Head, Medium Grained M (Blue Box) Description A medium grained ceramic cylindrical grinding head designed for precision work with rotary tools and nail drills. The compact 2.35 mm shank fits standard collets, providing stable performance for grinding, polishing, engraving, and small hole cleaning. Key benefits Precise material removal and consistent finish thanks to ceramic construction and medium abrasive grain. Reliable fit and compatibility with most rotary tools that accept a 2.35 mm shank. Compact and portable size for easy storage and convenient tool changes. Suitable as a direct replacement for worn bits to restore tool capability quickly. Features and specifications Item type: Grinding Head Shape: Cylindrical grinding head Material: Ceramic Style and size: Medium grinding M blue box Outer diameter: Approx. 6 mm / 0.2 in Shank diameter: Approx. 2.35 mm / 0.1 in Length: Approx. 37 mm / 1.5 in Available grain options 1. Extra coarse grained XC black box 2. Coarse grained XXXC plum red box 3. Medium grained M blue box 4. Fine grinding F red box 5. Extra fine grinding XF yellow box Package contents 1 Grinding Head Typical applications Nail care and manicure: shaping, refining acrylic and gel, and cleaning small holes around nails. Engraving and polishing: detail work on wood, plastic, and soft metals for model making and craft projects. Jewelry and small parts: deburring and surface finishing in tight areas where precision control is required. Usage notes Use with rotary tools and nail drills that accept a 2.35 mm shank. Check collet compatibility before use. Select the grain grade that matches the task: coarser grains for faster material removal, finer grains for smoother finishes.