Reverse Circulation drilling, or RC drilling, is a method of drilling which uses dual wall drill rods that consist of an outer drill rod with an inner tube. These hollow inner tubes allow the drill cuttings to be transported back to the surface in a continuous, steady flow.
RC drilling is a faster and more cost effective method for assaying chip samples as opposed to coring.
hello. may I please have a quotation on a 3 inch rc hammer and bit?
thank you