Package includes: you will get 3 pieces wood carving drill bits in 3 sizes: 3 x 3 mm, 3 x 4 mm, 3 x 5 mm; The package also comes with 20 pieces router bit in various types, including straight, trim, V groove, beading, cove, slot cutter and more; Sufficient quantity and nice combination can meet your different needsAdaptability: the size of is about 1/8 inches/ 3 mm, and 1.53 inches/ 39 mm in length, which is compatible with most popular rotary tools, fitting well for most small rotary tools with 3 jaw chuck for accurate centering; It is the nice addition to any woodworker's rotary tool, allowing them to finish working, grinding and shaping effectivelyWide range of usages: wood router bits set is suitable for detailed wood work, such as making sculpture, picture frames; Carbide engraving bits can be able to engrave on a wide range of materials including: wood, ABS, PVC, plastics and more; These burrs are intended for faster wood removal; Besides, made of sharp high-speed steel, burr bits carving kit is easy and fast to pare woods and leave a smoother finishQuality material: the drill bit set is made of quality high-speed steel and adopt precise cutting technology, which can save your energy and pressure, can be applied for a long time; It is mainly applied for engraving work, suitable for beginners or technicians, which is the nice hand-made for DIY carvings; You can also share this set with your friends or family members, creating your own wood crafts with carving bit set and bringing your masterpiece into life.size:Tool handle: 3mmMaterial:steelcolour:SilverPackage Contents:10 x Carbide Engraving Bits10 x Wood Router Bits3 x Wood carving drill bitsOnly the above package content, other products are not included.Note: Light 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.