the following example is for you reference.


1.Brief Introduction:

  

   is a part use to extend the length of kelly bar,connect the auger bit, or other drilling tools,is very useful in deep foundation pilling 

2.Techincal parameters:

  length 2m,3m, 6m, kelly box:130mm*130mm, 150mm*150mm, 200mm*200 mm 

 

3.Performance features:
with diffrent kelly box, can suitable for diffrent kelly bar, diffrent length can choose, can suitable for diffrent torque

Can easy to connect to ke