Grewin HSS-PM spiral tap DIN371/DIN376(Double black rings)
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High hardness and strength: Powder metallurgy provides superior wear resistance and durability.
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Excellent wear resistance: Ideal for machining tough materials such as high-strength steel, stainless steel, and alloy steel.
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Smooth chip evacuation: Spiral flute design is optimized for blind hole tapping, ensuring stable performance.
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High precision threading: Guarantees thread accuracy with fewer tapping defects.
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Long tool life: Extended service life reduces costs and supports mass production.
Applications ：
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Internal threading in stainless steel, alloy steel, and high-carbon steel
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Automotive parts manufacturing
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Aerospace precision component machining
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Mold and mechanical parts processing
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Mass production blind hole tapping in industrial manufacturing
