RODS

It is the tool transmitter of rotation and thrust to the cutting tool. It must be hollow to allow the circulation of the drilling fluid to reach the front of the core barrel, that is, to the cutting tool (core bit). In essence, these are hollow bars with a male thread at one end and a female thread at the other end, so that they allow the union of several rods one after the other and, at the end, their connection to the core barrel.

CASINGS

Casing pipes are not for drilling. The casing pipes are to be installed inside a previously drilled borehole and always with a smaller diameter.

• Metric casings
• W-WT casings