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Usually the land surface of the earth is covered with loose, unconsolidated material such as soil, clay, silt, sand, gravel and boulders, which varies in depth from a few centimeters to hundreds of meters.
Maxdrill’s concentric casing system is the perfect drilling tool to drill hole in the complex rock formation. Maxdrill offers a wide range of sizes of the concentric casing system from 114mm (4 1/2") to 1220mm (48") to suit your needs.
Application Range:
The concentric overburden drilling system is widely used to drill in rock formations where ovals and fractures are present.
Design Principles:
The stable and reliable working performance and less vibration of the drill rig.
Different Structures:
Concentric system with ring bits, wing and blocks.
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