High Durability: The drill bits are made of high-quality Material, ensuring durability and a precise cutting experience. They are suitable for various materials like wood, ABS, acrylic, PVC and plastic Compatibility with Rotary Tools: With a 1/8 inch (3.1 mm) shank and a length of 1.54 inches (39 mm), this router bit set is compatible with most popular rotary tools Diverse Bit Types: Comes with 20 of the most commonly used router bit types, including straight, trimming, V groove, beaded, concave and slotting bits, meeting different needs for detailed carving Easy to Use: The drill bits are stored in a plastic box that can stand and display the bits for quick access. These 1/8 inch shank router bits can perfectly replace your CNC machinery Versatile Function: This router bit set is designed for , such as making sculptures, photo frames, architectural models and sanding dollhouse furniture, model trains or mini buildings Colour:As Shown Material:steel Package Contents: 20 * Wood Carving Bits Only the above package content, other products are not included. Note: Light reflection and different displays may cause the color of the item in the picture a little different from the real thing. The measurement allowed error is +/- 1-3cm.