Hollow drill pipe RC

Reverse Circulation (RC) Drilling is a method of drilling which uses dual wall drill pipes that consist of an outer drill pipe with an inner tube. These hollow inner tubes allow the drill cuttings to be transported back to the surface in a continuous, steady flow. Unlike diamond drilling, it compiles sample rock cuttings instead of rock core. We offer: RC Drill Pipes from 88,9 mm to 273 mm OD Standard design with o-rings, alternative with special flat seal system (OF-version) All common industry standards, API and PERFORATOR threads Accessories: Crossover subs, Digout Subs, Blow-Down subs, Blow-Up subs etc. Non-Mag stainless steel RC drill pipes