Extension Drilling:
Extension drilling refers to the practice of extending the reach of the drill string to access deeper rock formations or to drill larger-diameter boreholes.
Extension drilling is achieved by adding additional drill pipes or drift rods to the existing drill string, thereby increasing its length.
This technique is commonly used in mining, geotechnical exploration, and construction projects where deeper drilling is required.
Our company drill rods are manufactured from premium, high-strength, alloy steel and are available in either hexagonal and round configurations. Sandvik rods are developed and designed to give you straighter holes with less deviation and longer service life.
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Company Profile
Shandong Yanggu Tianyue Drilling Tools Co., Ltd. was founded in 2005, which is a professional enterprise engaging in R&D and production of series of tools, such as drilling tools, mining machine tools, blast furnace drilling tools and so on.
Our company integrates scientific research, design, production, and operation in one, owning 5 related patents (1 invention patent), 4 trademarks, the import and export right of self-operation, and passing ISO9001 certification in 2007.
Our expert technical team has more than 20 years of accumulation and precipitation of drilling tool manufacturing technology, and continues to focus on the production of high-end heavy-duty hydraulic rock drilling rods, bits, shanks, and coupling sleeves.
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