Features

Design as straight type ,better for carry soil；

Double cutter bearing uniform force,can avoid inclined hole ;

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

Applicable layers: clay，high-weathered layer,gravel etc.；

Customizable Item

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;

Teeth Custom : equiped different teeth, like bullet teeth, flat teeth according to different working condition;

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