the following example is for you reference.


1.Brief Introduction:

  

 large diameter drilling pipe for DTH hammer also called large casing tube for dth hammer, contiunous flight auger for DTH hammer
Special used for drill large borehole,for hrad rock conditons 

2.Techincal parameters:
Diameter:100mm
Thickness of auger flight:20mm

  

 

3.Performance features:
for large borehole of DTH hammer, for hard rock conditons