General description Including rotary burrs, grinding heads, and rotary cutting tools, this 20Pcs 1/8In Shank Carbide Burr Set covers a wide range of drilling, grinding, and cutting tasks. The carbide burr set features a solid double-cut groove with cut teeth for fast material removal, improving efficiency and delivering a rougher finish. Made from high-hardness tungsten carbide steel, it is capable of processing materials up to HRC70 hardness, with a working life 10 times longer than high-speed steel and 200 times longer than a grinding wheel. This set is suitable for cutting, carving, deburring, finishing, and precision work on both metals and non-metals, making it widely used in metalworking, model engineering, wood carving, jewelry making, and more. Technical specifications Shank size: 1/8 inch (3mm) Material: Tungsten carbide steel Hardness capability: Up to HRC70 Measurement allowed error: +/- 1-3cm Compatibility and accessories Compatible with pneumatic and electric die grinders