Float Reamer

Float reamer apply HDD large diameter pipeline construction in trenchless , reamer drill and drill pipe increase the force of gravity reamer sinking to the characteristics of the use of mud buoyancy balance reamer own gravity, greatly reduce the width of multistage bore hole formed on the narrow image of pears, to lower the number of reaming and wash hole.At the same time, the buoyancy of mud is used to reduce the torque during reaming and reduce the construction difficulty.