General description These Tungsten Carbide Steel Rotary Tool Burrs are designed for high efficiency and durability, making them an excellent choice for various applications including DIY projects, wood carving, metal polishing, engraving, and drilling. The set includes 10 pieces with a double-cut design that enhances cutting performance and reduces grinding time. Technical specifications Material: Tungsten Carbide Steel Overall length: 40-50mm Cutting diameter: 1/4'' Shank length: 35mm Shank diameter: 1/8'' Chuck size: 3mm (1/8 inch) Bit size (grinding head): 6mm (1/4 inch) Machining hardness: HRA ≥ 85, HRC70 Speed compatibility: 6000-50000 rpm Compatibility and accessories Compatible with most rotary tools, woodworking grinders, die grinders, and straight grinders with a 1/8" chuck. Includes a variety of cutter heads in different shapes and sizes for versatile applications. Usage Ideal for wood carving, plastic, jade, ceramics, pottery, glass, stone, and metal working. Suitable for