77mm HTW Diamond Reaming Shell
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Size and Specification:
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Outer diameter of 77mm, suitable for HTW series drilling operations.
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Material and Construction:
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Made with high-quality natural or synthetic diamonds embedded in a highly resistant matrix. The steel body has threads for connecting to the drill bit and core barrel.
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Main Functions:
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Enlarges the hole to maintain the required diameter.
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Stabilizes the drill bit to reduce deviation.
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Cleans the drill hole to ensure smooth passage of drilling tools and replacement bits.
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Application:
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Widely used in geological exploration, mining drilling, and water well drilling, suitable for various rock formations.
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Design Features:
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Spiral water channels for efficient water flow and cuttings removal.
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Tungsten carbide inserts on the leading edge for enhanced wear resistance.
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Conical front edge design for easier entry into the drill hole.
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