Premium Material: Our wood carving tools are made of premium high-speed steel, extremely strong and sharp, long service life, anti-corrosion, heat-resistant, sturdy and durable. Wide Range of Uses: 5 different sizes (3mm, 4mm, 5mm, 6mm, 8mm), and both are used on different types of soft wood for DIY, wood carving, engraving, model making, home repairing and other woodworking. Work Efficiently: Our wood carving drill bits come with tricuspid design, accurate centering for clean and precise countersinking. The extremely sharp three-sided arc-shaped surface flute type can quickly discharge chips from the hole to the sides automatically. Suitable for drilling, carving, engraving, grinding and more. It leaves a smooth finished surface without damaging the wood. No retouching required. Create deep grooves, V-slots, patterns, and curved lines. Very easy to use: 3mm shank works with Dremel and most rotary tools, grinders. Suitable for DIY, hobbies, woodworking, modeling, chamfering, grooving,