Material: Made of high-speed steel 6542, with higher hardness and good wear resistance, impact resistance and heat hardening, and is suitable for cutting workpieces with larger size and heavier load.Polished Surface: The gold polished surface treatment enhances the twist drill's improved corrosion resistance, reducing friction during drilling operations and promoting smoother chip evacuation, minimizing heat generation, and enhancing overall drilling efficiency. Features: Can take into account a variety of models, hand drill, percussion drill, lithium drill, and bench drill can be adapted, effectively for precision drilling tasks on various workpieces.
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