core drill bit

DIAMOND COMPOSITE CHIP CORE BIT Diamond composite chip core bit The PDC core bit replaces high-quality diamond composite discs, which has the characteristics of wear resistance, high drilling efficiency and ... Read More Get Best Price

Double Wall Drill Pipe Supply all kinds of drill pipe and bit As well as various impactors and hammerbit API standard, with high torsion resistance drill pipe, mainly used in the construction of water wells, ... Read More Get Best Price