DescriptionThis item is a set of 20 pieces wood milling tungsten steel rotary bits, which are designed to cut and carve hardwood, cork wood, composite board, medium density fiberboard. Can be widely used in mechanical, aviation, automobile, shipbuilding, chemical industry, carving and other industrial sectors, also suitable for those who want to built their own woodwork by themslves. It is easy to mount, simple to use, safe and reliable. Assorted 20 pieces of rotary tools are great for different requirements, the woodwork will be much eaiser and more interesting with the help of these tools.Features- Color: Silver - Material:Tungsten steel - Diameter: 3mm (about 1/8"); Length: 3.9cm - Suitable for woods, MDF board, particle board, chipboard, plywood. Avoid cutting ferrous metal and non wood materials, such as steel, iron, sand and more. - Simple to operate. Perfect for engraving, beveling, chamfering, grooving, veining, reaming, edging, hollow carving jobs. - Industrial quality router bits. Reinforced tungsten steel carbide, good impact resistance and sturdy. - There are 20 kinds of grinding routing bits to meet different woodworking jobs. - With 3mm diameter mandrels, fit most rotary tools including Dremel. - Great for mechanical, aviation, automobile, shipbuilding, chemical industry, home crafts, etc.