ITEM NAME:10pcs 4mm Carbide PCB Engraving Bits CNC Router Tool 20 Degree 0.8mm V-Shape Description: - 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. - Made of high quality Car.10 Pieces CNC Engraving Bits. - Suitable for CNC engraving machine. - Mirror edge grinding process design, no smoke, no odor, quiet, greatly improve work efficiency. - Degree: 20Â °. - Widely used in handicrafts, electronics, advertising, decoration, wood processing industry.