✔[Superior Materials]: This carbide file/rotary drill set is made of high-quality metal, boasting a long service life, extremely high hardness, and excellent toughness. Cutting foreign objects with this carbide file set is as easy as cutting butter with a hot knifes. ✔[Versatile Applications]: Ideal for fine machining, cutting, carving, finishing, and machining of high- mold cavities. It can process various metals (including steel, aluminum, etc.) and non-metals (such as marble, jade, and bone). ✔[Premium Gift]: This carbide rotary file set makes a for your artist friends; we hope they be pleased. ✔[Dual-groove Design for Efficient Operation]: The dual-groove grinding head features a crosshair design, characterized by rapid chip removal, high cutting speed, and excellent polishing effect, significantly improving work efficiency. Its processing efficiency is dozens of times higher than a manual file and nearly ten times higher than a small, handle-mounted grinding wheel. Different contour designs allow woodcarvers or metal engravers to easily refine any shape., Manufacturer: Ounfhtrttk