Crafted from high-carbon steel or more resilient materials like cobalt, the 75mm drill bit boasts a hard-wearing composition that ensures longevity. Its tempered surface resists corrosion and maintains a sharp cutting edge even under the relentless strain of contact with concrete, stone, or metal. A coating of black oxide or titanium can enhance this durability further, providing an additional layer of protection against the heat and friction generated during operation.
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2025-08-14 06:10
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