?10 different rotary cutters?The engraving cutter has 10 different head shapes to choose from, suitable for different angles or positions, and can meet the needs of processing or engraving. ?High quality material? Made of durable tungsten steel, high hardness and good toughness, the carbide rotary cutters feature good wear resistance and corrosion resistance, and have a long service life. ?Specifications ? Shank diameter: 3mm, cutting diameter: 6mm, total length: approx. 45-50mm. Double tungsten cutters are ideal for DIY carving enthusiasts who use small rotary tools (such as Dremel). ?Double groove design?The groove lines of the head are crossed, very sharp, the cutting is very clean and no blocking, it is very suitable for fine processing. ?Widely used? Burr rotary sets are widely used for grinding, polishing, engraving, chamfering, deburring, digging of metal and non-metal, such as wood, plastic and other materials soft.