General description These Tungsten Carbide Steel Rotary Burrs are designed for high efficiency in various applications including wood carving, metal polishing, engraving, and drilling. Made from high-quality tungsten carbide steel, these burrs are sharp, sturdy, and durable, ensuring a long service life. The set includes 10 pieces with a double-cut design, making them ideal for both DIY projects and professional use. Technical specifications Total length: 40-50 mm Cutting diameter: 1/4 inch Shank length: 35 mm Shank diameter: 1/8 inch Machining hardness: HRC 70 Chuck size: 3 mm (1/8 inch) Bit size (grinding head): 6 mm (1/4 inch) Speed compatibility: 6,000-50,000 rpm Compatibility and accessories Compatible with most rotary tools, wood grinders, die grinders, and straight grinders with a 1/8 inch chuck. Packaged in a transparent and durable case for easy storage and transport. Usage Suitable for drilling, engraving, grinding, polishing, and removing sharp edges. Effective for working