Feature 1Application: Rotary grinder can be used for woodworking, engraving, engraving and polishing, chamfering, slotting, reaming, hollowing and chamfering. 2Usage: Rotary burr is suitable for wood, steel, carbon steel, alloy steel, stainless steel, copper, aluminum and other metals, marble, jade, bones, etc. 3Multislot Design: Rotary burr set uses a special multislot design, which greatly improves work efficiency. 4Quality Material: The rotating tool accessories are made of high quality tungsten steel, which is very durable and sturdy. 5Easy Storage: Equipped with a storage plastic box, which is easy for transportation and safe keeping.Item Type: Rotary Burr SetMaterial: Tungsten Steel, PlasticShank Diameter: Approx. 3mm/0.12inScope of Application: Woodworking, Carving, Polishing, etc. .wang-edit-text{ font-family:'Arial' !important; } .wang-edit-text table { border-top: 1px solid #000; border-left: 1px solid #000; } .wang-edit-text table td, .wang-edit-text table th { border-bottom: 1px solid #000; border-right: 1px solid #000; padding: 3px 5px; } .wang-edit-text table th { text-align: center; }Package List20 x RotaryFiles Burrs1 x Plastic BoxNotePlease note that the new type and old type of this product will be sent randomly, and make sure you will not mind before ordering.