Product parameters: Weight: 35g Type: carving knife Material: white steel Size: 3*3/3*4/3*5/3*6/3*8 The first number "3" represents the diameter of this baby's rod. The second number "4" is the approximate diameter of the tool blade. Package Contents: Engraving Drill Bits (5pcs) Set * 1 Product Description: Quality materialMade of high-quality high-speed steel with long service lifehas the advantages of high hardness, good wear resistance and heat resistance, which are good for wood carving. Highly efficientThese burrs are designed for faster wood removal. Made of sharp high-speed steel, the wood carving and engraving drill bit set allows you to easily complete all kinds of wood carving projects with faster and more precise detail. Optimal precision and detailMake wood carving a breeze without damaging the forest. Get accurate results with a smooth finish. No retouching required. Simple & EasyJust attach it in a drill and you're good to go Convenient and easy to use, allowing you to carve wood effortlessly, unlike traditional carving which may damage and hurt your hands. ApplicationSuitable for engraving and milling soft wood, plastic and other soft materials. Can be used for carving, beveling edges and corners, slotting, reaming, hollowing and other engraving work. Note: 1.Due to the difference between different monitors, the picture may not reflect the actual color of the item. 2.Due to manual measurement, there may be an error of 1-2mm.