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The advent of high-strength, low-alloy (HSLA) steels brought about a significant leap in performance. These alloys offered improved resistance to corrosion, higher yield strength, and better toughness, allowing drill rods to withstand the rigors of deep drilling without failing. Furthermore, heat treatment processes were refined to give the steel additional hardness while retaining its flexibility, ensuring that the rods could bend without breaking as they navigated through twists and turns in the mine shaft.

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There are various types of rock drill shank adapters, each tailored to specific drilling applications and conditionsrock drill shank adapter. For instance, spline shank adapters are commonly used in heavy-duty drilling due to their robust design and increased torque transmission. Meanwhile, hexagonal shank adapters, with their six-sided profile, offer better stability and resistance to torsion. Additionally, there are adapters designed for use with DTH (Down-the-Hole) hammers, which are specifically engineered for deep hole drilling.

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