Markets
Geographic Locations
Core Drilling is used in the mining industry to probe the contents of known ore deposits and potential mine sites. By withdrawing a small diameter core of rock from the ore body, geologist then can analyze the core by petrologic, structural and mineralogical studies of the rock.
National offers four "wire line" core sample tube sizes typically used. Larger tubes produced larger diameter rock cores and require more drill power to drive them. The choice of tube size is a trade-off between the rock core diameter desired and the depth that can be drilled with a particular drilling rig motor. Below is the core sizes offered from National.
