Constructed using superior Steel, these jewelry burs excel in durability and wear resistance, making them perfect for intricate detailing on various materials. Rust- properties long-lasting performance for hobbyists and professionals alike. This comprehensive set includes six distinct sizes of cylindrical -cut burs (0.8/1/1.4/1.8/2/2.3mm), tailored to meet detailed engraving and drilling needs on a variety of materials including precious metals and gemstones. Featuring a universal 3/32 inch (2.35 mm) shank, these burs seamlessly integrate with a wide range of equipment such as rotary tools, drills, grinders, and hanging mills, maximizing compatibility and utility in various professional settings. Specifically designed for tasks, these burs are perfect for carving intricate details into silver, jewelry, aluminum, and soft precious metals as well as crafting small items like beads, walnut and olive cores, enhancing both creativity and work efficiency. The package securely contains six robust and precisely machined 3/32 inch shank cylinder cut jewelry burs, ensuring you have the necessary tools to tackle diverse crafting and professional projects with and ease., Weight: 0.01984160358 pounds, Manufacturer: Aisuoka