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The U-drill is a high-performance drilling tool featuring a distinctive U-shaped flute design for excellent chip evacuation and coolant delivery. It typically uses indexable carbide inserts (non-solid construction), offering high cutting efficiency, good hole accuracy, and versatility across various materials (e.g., steel, cast iron, stainless steel, aluminum alloys). Compared to conventional twist drills, the U-drill significantly reduces cutting resistance, making it ideal for high-speed drilling and step-hole operations on machining centers, CNC lathes, and other equipment.
