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In addition to their mechanical advantages, tapered drill rods contribute to enhanced drilling accuracy. The gradual change in diameter helps maintain a consistent hole trajectory, particularly in directional drilling operations where precision is paramount. They also offer better control over the drilling depth, allowing operators to reach targeted depths more accurately They also offer better control over the drilling depth, allowing operators to reach targeted depths more accurately They also offer better control over the drilling depth, allowing operators to reach targeted depths more accurately They also offer better control over the drilling depth, allowing operators to reach targeted depths more accuratelytapered drill rod.

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The drill bit, often made of tungsten carbide or steel, is the cutting edge of the tool. It comes in different designs such as button bits, DTH (Down-The-Hole) bits, and PDC (Polycrystalline Diamond Compact) bits, each suited for specific rock types and drilling conditions. Button bits, for instance, are widely used in surface drilling due to their durability and ability to handle softer rocks. On the other hand, PDC bits are ideal for drilling through extremely hard rocks due to their exceptional wear resistance.

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