Brief: The core barrel with roller bit can drill the formation which the drilling bucket and core barrel with bullect teeth can not drill on foundation piling project.If you want to cut hard rock, you should have high effective core barrel piling with constrution drilling equipment.
Brief: The roller drill core barrel is different from other drill tools, it has relatively high requirements on the use method. During core foundations piling , the core barrel roller bits should be lifted from time to time.
Brief: The roller drill core barrel is different from other drill tools, it has relatively high requirements on the use method. During core foundations piling , the core barrel roller bits should be lifted from time to time.