Main applications：

1，Stiff to hard cohesive soils.

2，Loose to dense non-cohesive soils.

3，Double cut drilling bucket recommended in uncased borepiles or for larger diameters and for secant piles.

Features：

1，Kelly box 130mm/150mm/200mm/250mm customized.

2，Round shank chisel B47K22H.

3，Ventilation pipe.

4，Wear protection: hard facing or wear strips.

5，Replaceable Rock polit.

Production Process：

Parameters：

Cases:

Packing and delivery：