Specification: Cutting edge diameter (CED): 0.1mm; cutting edge length: 1.7mm; shank diameter: 3mm / 1/8" (approx.) overall length: 38mm / 1-1/2" (approx.). Long Tool Life: With high hardness, high wear resistance, high strength, resistance to bending, anti-impairment. Made from Tungsten Carbide for precise, easy experience. Spiral Flute Bits: Tip spiral flute drill bits with sharper cutting edge, reduce cutting force and prevent drill broken, improve the drilling accuracy, and effectively discharge accumulated chips. High Precision: With sharp cutting edge, milling groove and clean surface, these sets of tool work quickly and cleanly, no glitches or scrap left.The positioning ring design, can reduce installation and commissioning time. Great Use: Great for PC Boards, Plastics, Fiberglass, Wood, Soft Metals. Fit for: PCB drilling machines, engraving machine, CNC and high precision special drilling equipment.
