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A rock drilling rod, typically made from high-strength alloy steel, is a cylindrical shaft that connects the drill rig to the drill bit. Its primary function is to transmit the mechanical energy from the drilling machine to the bit, facilitating the drilling process. The rods' durability and resistance to deformation under immense pressure are crucial attributes, as they are subjected to rigorous forces during drilling operations.

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To begin the process, the artisan selects a suitable button bit based on the desired depth and width of the cut. The bit is then attached to a rotary tool, such as a Dremel, which allows for precise control over the speed and direction of the cut. With the tool set at the appropriate speed, the artisan gently guides the bit over the surface of the material, applying just enough pressure to remove thin layers of wood.

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The design of these drill rods is a testament to engineering ingenuity. They are designed to withstand the immense pressure and friction generated during drilling, while also being flexible enough to navigate the complex geological formations that coal mines often encounter. The surface treatment, often involving heat treatment and anti-corrosion coatings, enhances their durability and resistance against wear and tear, ensuring a longer service life.

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  • Rock drilling, an ancient practice dating back to prehistoric times, has evolved significantly over the years. Today, it is a highly specialized field dominated by companies that possess a deep understanding of geology, engineering, and mechanics. These companies not only drill for minerals, oil, and gas but also contribute to infrastructure development by creating tunnels, shafts, and foundations.