Features

Cutting ring with rock drilling bits and releases the internal stress of rock，while cutting inside；

Crossing cutter make it easy to carry soil, when drilling in the full fracture rock layer  ;

Applicable layers: gravel soil, highly weathered rock, medium weathered rock

Customizable Items

Cutting DIA. Custom : design various cutting diameter based on demand, like φ950、φ1050 etc.

Shell HIT. Custom : design as demand, prolong or shortten, increase of efficiency by drilling more.

Key Component Reinforce Custom : strengthen the key component to extend life cycle;

Kelly Box Custom : custom kelly box size based on the kelly bar, like 130*130, 150*150,200*200 etc;

Teeth No. Custom : encrypt the drilling teeth based on demand etc;