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What is Horizontal Directional Drilling

Horizontal Directional Drilling (HDD) is a method of installing underground pipelines, cables and service conduit through trenchless methods. It involves the use of a directional drilling machine, and associated attachments, to accurately drill along the chosen bore path and back ream the required pipe.   Directional drilling is a three stage process:   1.Pilot Hole The first stage consists of …

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