100%Brand new and unused Suitable for CNC engraving machine Suitable for cutting the acrylic, PVC, hardwood and medium-density fiberboard Widely used in handicrafts, electronics, advertising, decoration, wood processing industry Product Name: PCB engraving bit (carbide engraving bit Plating titanium) Carbide rods and tungsten steel rods, with high hardness, high wear resistance, high strength, resistance to bending, anti-impairment and long tool life. coated with titanium Improve the speed and feed rate of the tool ,Improve the surface wear resistance. 3.175mm Carbide PCB Engraving Bits CNC Router Tool 10 degree 0.1mm A Wide Range of Materials can be engraved, including: Copper, Aluminum ABS, Acrylic, PVC, Nylon, Resin Majority of plastics Wood Fibre glass Carbon