【HIGH-SPEED STEEL MATERIAL】Wood carving bit made of high-quality high-speed steel, which is very strong and sharp. Long-life carving bit, anti-corrosion and heat-resistant, and is both sturdy and durable. 【WIDE APPLICATION】Wood carving tool mainly applied for wood carving and fine work on bird feathers, fish scales, and other crafts, such as crafting deep grooves, V-slots, curved lines and patterns. This carving tool can achieve a smooth and beautiful finished craft effect. It is ideal for DIY handwork. 【TRICUSPID ARC DESIGN】The extremely sharp three-sided arc flute can quickly evacuate chips from the hole on all sides and bring out a smooth finished surface without damaging the wood. It is an excellent tool for wood carving. 【SIZE DETAILS】Head diameters of 3mm, 4mm, 5mm, 6mm, and 8mm are available. Compatible with most mini rotary tools with a 1/8 inch (3mm) shank, as well as many others. Various sizes are available to meet your various needs.