Constructed from superior vanadium steel, these jewelry burrs offer exceptional hardness and resistance to wear and rust, ensuring long-lasting durability and reliable performance for professional use in crafting and detailed metalwork. Featuring a universal 3/32 inch (2.35 mm) shank, these burrs are compatible with most rotary tools, drills, and grinders, making them a versatile choice for detailed engraving and lapidary applications. Ideal for use with soft materials such as olive core, beads, bone, wood, and precious metals, these burrs are designed to deliver precision results, allowing artists and craftsmen to achieve fine detail and smooth finishes in their work. This set includes 12 precision-engineered cone tapered cut engraving burrs with 3/32 inch shanks, neatly packaged for organization and easy access, helping users enhance their creative projects. Shank: All burrs feature a 3/32 inch round shank. Easy to use: Compatible with pendant motors, bench grinders, electric grinders, and rotary tools. Application: Suitable for carving and grinding silver, jewelry, wood, walnut, olive core, beads, bone, and soft metals. Safety note: Always secure the tool properly before operation and check for excessive vibration. Adjust as needed to prevent跳动 (jumping or wobbling) during use, which may lead to premature wear. Note: Slight color variations due to lighting and screen display differences may occur. These do not affect functionality. Color: Silver Material: Metal Sizes: 0.6, 0.7, 0.8, 0.9, 1, 1.1, 1.3, 1.5, 1.6, 1.8, 2.1, 2.3mm Package Contents: 12 x Burr Sets Packaging includes only the items listed above; other accessories are not included. Note: Lighting effects and monitor settings may cause slight color differences between the image and the actual item. Measurement error is +/- 1-3 cm.