【Material】: Made of high quality high speed steel for long life, strong and sharp, corrosion resistant, excellent wear resistance. 5pcs engraving tool packaged in a transparent box. 【Three Blade Design】: Increased efficiency, ideal tool for precision work such as deep grooves, V slots, patterns, curves and lines. Three blade design helps to remove chips from the hole quickly and automatically. It is suitable for carving, engraving, grinding, drilling and more, leaving a smooth surface. 【Perfect Tool for DIY and Home Repair】: Widely used on various types of wood for DIY, wood carving, model making, animal hut building, home repair and other woodcraft. An essential carving tool for creating your own masterpiece. 5 different sizes (3mm, 4mm, 5mm, 6mm, 8mm) for different needs. 【Universal shank】: 1/8 inch shank fits most rotary tools with a three-jaw chuck, easy to change.