Usage: used for geological exploration hole, gas drainage hole, probe hole, grouting hole drilling, suitable for soft and hard interbedded strata.
Features: cutting the free surface, sharp knife edge, with self sharpening function, high drilling efficiency, good stability, wide suitable lithology, strong wear resistance. According to the formation characteristics, drilling and surface structure of different bit selection, adaptability. Net drilling time utilization rate is high, the auxiliary time is short, reduce the labor intensity of the workers, good comprehensive benefits, higher drilling efficiency.
Specification: φ 48, φ 153