6PCS high grade alloy hole saw sets

High quality carbon steel substrate cutters for high-performance cemented carbide material, centering drill bit for high speed steel quality. Each equipped with drills, wrenches and springs. Center bit of configuration, easy positioning of the workpiece and waste drops. Unique hole flutes and chip design and high efficiency. The integration of design, ensuring borehole stability, reduced vibration applications: suitable for processing all kinds of plates and tubes, such as steel, stainless steel, cast iron plate, plastic plate and other plate

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