Material: Made of high quality high speed steel for long life, strong and sharp, anti-corrosion, excellent wear resistance. 5pcs engraving tools, packed in a transparent box. Three Blades Design: Increased efficiency, ideal tool for precision work such as deep grooves, v-slots, curved patterns and lines. The three-blade design quickly and automatically clears chips from the hole, suitable for carving, engraving, grinding, drilling and more, and leaving a smooth finished surface. Perfect Tool for DIY and Home Repairs: Widely usable on different types of wood for DIY, wood carving, model making, animal house making, home repair and other woodworking. A must-have carving tool for creating your own masterpiece. 5 different sizes (3mm, 4mm, 5mm, 6mm, 8mm) to meet different needs. Universal Rod: The 1/8 inch shank fits most rotary tools with an easy to change three-jaw chuck. Quantity Shipped: 5 pieces Size as shown