Features

Location by pilot, conical structure drilling into the rock；

Double cutter bearing uniform force, can avoid inclined hole ;

Double spiral easy to carry soil, but meet cohensive soil, single spiral is easy to dump spoil;

Applicable layers: medium weathered rock, bedrock；

Customizable Items

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

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

Spiral Pitch Custom : adjust the spiral pitch according to different working condition;

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

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