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There are several types of core drill bit extension rods available, including straight extension rods, tapered extension rods, and threaded extension rods. Each type has its own unique design and is used for specific drilling applications. Straight extension rods are used for drilling straight holes, tapered extension rods are used for drilling holes with a conical shape, and threaded extension rods are used for attaching different types of drill bits to the extension rod.

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In comparison to traditional drill strings, which are often limited by their uniform diameter, the tapered drill string excels in its adaptability. It can be customized according to the specific requirements of a drilling project, such as the depth, inclination, and type of terrain being drilled through. This customization ensures that each segment of the string can perform optimally under the given conditions, further enhancing its performance and longevity.

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