Multiple Shapes: This 20-piece diamond burr set for rotary tools comes in a variety of shapes, including spherical, conical, cylindrical, oval, arc-shaped, and flat rectangular. Different models and a wide range of shapes cater to various needs. Whether you need to carve or polish any shape, our diamond burr set can meet your requirements. Versatility: Diamond burrs are ideal for home decoration and crafts, and are excellent tools for grinding, milling, drilling, cutting, carving, and more. They can be used for carving on tiles, ceramics, marble, granite, and other hard materials. Whether for home decoration or crafts, diamond burrs are an indispensable tool. They can carve a variety of hard materials, showcasing exquisite craftsmanship. Material: Diamond burrs are made of reliable, thick, and durable diamond particles. They are wear-resistant, have high hardness, are impact-resistant, and durable enough for fine processing. In crafts, diamond burrs can easily handle a variety of fine processing tasks, and their high hardness and wear resistance ensure that they will not deform or wear out even after prolonged use.