Jeeje 10Pcs Engraving Bits with Nano Blue Coating, 10 Degree 0.1mm / 0.004" Tip CNC Router V-Bit Carbide 3.175mm / 1/8" Shank Carving Tool for PCB Wood Plastic Lettering Sign Making - J-AY08

• Durable Material: Made of solid carbide (tungsten steel) with nano blue coating, high hardness, wear resistance, good toughness and heat resistance. Provide good cutting strength and drilling effect. It is not easy to be broken and has a long service time. V-Shaped Design: With a sharp cutting edge, which provides smooth cutting, no glitches. 3.175mm (1/8in) shank fits most small rotary tools and grinders when finishing, grinding, and shaping the work with precision. 10 degree 0.1mm (0.004in) cutting edge allows for precise details. Portable Size: The CNC bits is small in size and light in weight, which is convenient for you to carry it anywhere. The box size of the engraving bits is 55mm*54mm*9mm (2.16in*2.12in*0.35in). The length of the engraving bits is 28mm (1.1in). Shank size is 3.175mm (1/8in). Wide Applications: Can be used for carving, cutting, milling, etc. Widely used to engrave on hardwood, plywood, acrylic, plastic fiber, resin, ABS, PVC, PCB, etc.. Suitable for lettering and sign making. Easy and simple for CNC router operator to use. Usage Tips: Combined with the material to be processed, select an appropriate feed rate and cutting speed to improve the tool life. And The longer the length of the tool clamped by the chuck, the better. Hard materials can be engraved, but this may reduce the lifespan of this engraving bits.