Constructed from superior Steel, these jewelry burs offer exceptional hardness and durability, ensuring long-lasting performance. The material is also to wear and rust, making it ideal for frequent use in crafting and engraving applications. This set includes six meticulously crafted Knife Edge Cut Lentil Burs in sizes 008, 010, 014, 018, 020, and 023, providing a versatile range of options for detailed and precise engraving work on materials. Featuring a universal 3/32 inch (2.35 mm) shank, these cutting burs are compatible with a wide array of tools including rotary tools, drills, grinders, and hanging mills, ensuring seamless integration with your existing equipment. Ideal for detailed carving and engraving, these burs are perfect for working on silver, jewelry, aluminum, walnut, olive cores, beads, and other precious soft metals, offering and control in your projects. Colour:silver Material:steel Package Contents: 6 * T Shape Knife Edge Cut Lentil Burr Only above package content, other products are not included. Note: Light reflection and different displays may cause color of item in picture a little different from real thing. The measurement allowed error is +/- 1-3cm.