General description These Tungsten Carbide Steel Rotary Tool Burrs are designed for high efficiency and durability. Made from premium quality tungsten carbide steel, they are sharp, strong, and built to last. This set includes 10 pieces with a 1/8” shank, suitable for various applications including wood carving, metal polishing, engraving, and drilling. Technical specifications Overall length: 40-50 mm Cutting diameter: 1/4 inch Shank length: 35 mm Shank diameter: 1/8 inch Bit size (grinding head): 6 mm (1/4 inch) Machining hardness: HRA ≥ 85, HRC 70 Compatibility and accessories Compatible with most rotary tools and die grinders Chuck size: 3 mm (1/8 inch) Usage Ideal for wood carving, plastic, jade, ceramics, pottery, glass, stone, and metal working Suitable for drilling, engraving, grinding, polishing, and removing sharp edges Efficiently replaces small grinding wheels Other information Packaged in a transparent and durable case for easy storage and transport Designed for high work