WHAT YOU GET: 20 types of router bits. This wood router bit set includes 20 of the most useful milling cutter types, such as straight, trimming, V-groove, blank holder, concave, and grooving knife, designed to meet various engraving and carving needs. DURABLE MATERIAL: The cutter head is made of high-quality high-speed steel (HSS) with a titanium coating, offering long service life, high cutting accuracy, smooth cutting performance, and excellent wear and heat resistance. Suitable for use on a variety of materials including wood, ABS, acrylic, PVC, and plastic. HIGH COMPATIBILITY: This router bit set is compatible with most popular rotary tools, making it a versatile addition to your tool collection. EASY TO USE: The set comes with two plastic storage cases that help keep the bits organized, clean, and easily accessible. The organized layout allows for efficient selection and use during projects. STRONG PRACTICALITY: Ideal for woodworking applications such as joinery, carving, and frame making. The HSS router bits can be used for carving on various materials including wood, ABS, PVC, and plastic.