Complete Burr Size Range: The set includes a wide range of burr sizes from 007 to 023, enabling intricate work on various materials. Whether crafting fine jewelry or working on a lapidary project, these burrs meet diverse needs. Crafting Tool: Designed for jewelry makers and hobbyists, this set of 12 90 degree Hart burrs is perfect for detail engraving and carving. The milled steel ensures durability and accuracy in every use. Construction: Made from premium milled steel, the burrs resist wear and maintain sharpness over prolonged use. This quality construction ensures long-lasting reliability and consistent performance. Versatile Shank Size: Each burr in this comprehensive set boasts a 3/32 inch (2.35 mm) shank, making them compatible with most rotary tools, drills, and grinders. perfect for both professional jewelers and DIY enthusiasts. Portable Storage Solution: Delivered in a robust plastic storage box, this set of 12 burrs is neatly organized and easily portable. The casing not only protects the burrs but also provides a convenient storage option, keeping your workspace tidy., Weight: 0.03747858454 pounds, Manufacturer: Aisuoka