Reverse Circulation, or RC Drilling, is a clean and environmentally friendly method of deep foundation installation. It employs dual-wall drill rods, comprised of an outer drill rod with an inner tube . As the sections of drill rod are screwed together, the inner tubes overlap and seal with O rings. This provides a continuous path for the drill tailings to be transported from the bit face to the surface.

1.Manufactured using premium hardened metals for long life;
2.Maximum material recovery, up to 98%;
3.No cross contamination of samples;
4.Handles injection of water, foam, oil, and polymers without performance loss;
5.Delivers maximum drilling under water.

About us:

We are a leading manufacturer of rock drilling tools, like DTH hammers and bits, DTH drill pipes, RC hammers and bits, tophammer button bits, coupling, cross bits, drill rods located in Changsha, Hunan, China.
We have rich experience in this field of DTH hammers and bits for 20 years.
Owing to high quality, professional serivce and competitive price, we have gotten good reputation from our customers from all over the world, such as France, Spain, Italy, South Africa, Iran, Malaysia, Australia ad etc.

Usually it needs 15-25 days,3-5days if have stock.

Shipping

By Air, By Sea or By express.

Package

Ply - wooden cases + Pallet

DTH hammers >> DTH bits >> RC hammers >>

RC bits >> Button bits >> ODEX system >>