Large batch of Flat Rock Auger and Conical Rock Auger rotary drilling tools

This is a large batch of Flat Rock Auger and Conical Rock Auger rotary drilling tools, drilling diameter from 400mm to 1200mm. 
The augers will be used with kelly bar together for bored piles foundation construction. 
As a rotary drilling tools manufacturer, we manufacture Rotary drilling bucket, core barrel, auger and drilling teeth for civil engineering.