1.The product is used for the reaming of the oil, gas, petrochemical, sewage, power and fiber optic pipelines in the no-dig horizontal directional drilling. 2.Directional crossing operation is widely used in unexcavated project. 3.Small torque force can be applied to hole opening with drilling machine. 4.Hole opener includes body and the cutter. 4 different types of cutter can be assembled to the body in one size for opening the hole in 4 sizes. 5.Cutter can be divided into MT type used in soft formation and TCI type used in hard formation.
