WHAT YOU GET: 20 types of router bits. This Wood router bit set comes with 20 most useful milling cutter drill types, including straight, trimming, V-groove, blank holder, concave, grooving knife, which can meet all your engraving and carving needs. DURABLE MATERIAL: The cutter head of the milling cutter is made of high-quality high-speed steel (HSS) and coated with titanium. It has a long service life, high cutting accuracy, easy cutting, good wear resistance and heat resistance, suitable for a variety of materials, Including: wood, ABS, acrylic, PVC, plastic, etc. HIGH COMPATIBILITY: This router cutter bit set must be an important supplement to your rotary tool, it is compatible with most popular rotary tools. EASY TO USE: This package comes with two plastic boxes, which helps to store your tool and keeps it clean and neat while using. Putting the bits on the boxes to display it while using would make your drilling work even more efficient. STRONG PRACTICALITY: Suitable for joinery, such as carving and frame making. HSS router planing carbide carving knife can be carved on various materials, including: wood, ABS, PVC, plastic, etc.