Threaded ‘Sub Adaptors' are used to join drilling tools and accessories such as hammers or drill bits to common drill pipe. A standard range of sub adaptors are produced in our workshop by CNC turning and vertical machining centre and held in stock.
Also, we can manufacture special sub adaptors with specific threads to meet any customer requirement.
Drilling soft geological formations ‘mud circulation drilling method’ is used. A mix of water and thickening additives are pumped down inside the drill pipe to wash drill cuttings to the surface – the water/mud column in the borehole also effectively supports soft and saturated formation from collapsing.