General description Good practical set for model making or professional use that requires small tools. This 20-piece rotary burrs set is ideal for DIY woodworking, carving, engraving, and drilling. Made of high-speed steel, the files are reliable and robust, perfect for working with soft wood. The set includes various sizes and shapes, making it suitable for any do-it-yourselfer looking to add intricate details to their projects. Technical specifications Quantity: 20 pieces Shank size: 1/8'' (3mm) Material: High-speed steel