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.Black Oxide Coating: The black oxide coating enhances the twist drill's wear resistance and heat dissipation properties, reducing friction and extending the tool's lifespan, resulting in smoother and more efficient cutting operations.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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