20 pieces of rotary drill bits: This set includes 20 different wood carving drill bits, each with a unique shape designed for various applications such as woodworking, carving, drilling, beveling, grooving, hinge cutting, shaping, and hollowing. Ideal for detailed engraving tasks. High quality: Made from high-speed steel (HSS), these engraving rotary drill bits are durable, with excellent wear resistance and heat resistance for long-lasting performance. General compatibility: Each bit features a 1/8 inch (approximately 0.3 cm) shank and is 1.57 inches (4 cm) in length, making them compatible with most small rotary tools. Designed to help you complete woodworking and engraving tasks efficiently. Wide use: Suitable for precision work on materials such as wood, PVC, plastic, foam, and more. Great for use in wood carving, crafting, furniture detailing, and miniature model building. A valuable addition for DIY enthusiasts and hobbyists. Color: Silver Material: High-speed steel Package Contents: 20 x HSS rotary bits Note: The package includes only the items listed above. Lighting and display differences may cause slight variations in color between the image and the actual product. Measurement may vary by +/- 1-3 cm.