Solitary M-Wall ring bit system is used to drill straight interlocked casings through boulders and rock layers even into inclined bedrock. M-Wall is a perfect solution to replace sheet piles and slurry walls in rocky ground conditions.
The solitary design means that the casing shoe and the ring bit are separated which, in the hands of an experienced driller, is a very cost effective drilling solution.
The system is available from 219 to 1 220 mm casings and for all major shank designs. It uses Spiral Flush technology, offering class-leading safety in overburden drilling.
Download the pdf data sheet for detailed information and measurements.