ITEM NAME:10pcs 3mm Shank Milling Rotary File Burrs Bit Set Wood Carving Rasps Set Description: It can be used for Rotary File, Electric grinding polishing head, Engraving cutter. Made by high speed steel and tungsten car.It can be used for Rotary File, Electric grinding polishing head, Engraving cutter. Using an engraving machine / mini-Drill forms of cutting part provide efficient processing. Perfect for all sorts off jobs like model making,compatible with other multi-tool machines.