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Specifications: Cutting edge diameter (CED): 3.1mm / 0.122"; shank diameter: 3.16mm / 1/8"; overall length: 38mm / 1-1/2"; angle point: 135 degree.
Long Tool Life: Made from tungsten carbide, high hardness, high wear resistance, high strength, resistance to bending, long service life.
Spiral Flute Bits: Spiral flute drill bits reduce cutting force and prevent drill broken, improve the drilling accuracy. Large drill bit chip space, chip resistance, chip smooth, small drilling heat.
Precision: With sharper cutting edge, milling groove and clean surface, the carbide PCB drill bits can work quickly and cleanly, no glitches or scrap left.
Applications: Great for PC boards, plastics, fiberglass, wood, soft metals. Suitable for PCB drilling machines, engraving machine, CNC and high precision special drilling equipment.
Features: Cutting Edge Diameter (CED): 3.1mm / 0.122" Cutting Edge Length: 12mm / 0.472" Shank Diameter: 3.16mm / 1/8" Overall Length: 38mm / 1-1/2" Angle Point: 135 Degree Material: Tungsten Carbide Flute Type: Spiral Description: Long Tool Life: Made from tungsten carbide, high hardness, high wear resistance, high strength, resistance to bending, long service life. Spiral Flute Bits: Spiral flute drill bits reduce cutting force and prevent drill broken, improve the drilling accuracy. Large drill bit chip space, chip resistance, chip smooth, small drilling heat. Precision: With with sharper cutting edge, milling groove and clean surface, the carbide PCB drill bits can work quickly and cleanly, no glitches or scrap left. Applications: Great for PC boards, plastics, fiberglass, wood, soft metals. Suitable for PCB drilling machines, engraving machine, CNC and high precision special drilling equipment. Tips: The drill bits are too tiny, so it is very fragile for handling. Please be careful and take good control of your CNC speed. Package Included: 8pcs x PCB Drill Bits