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Custom bottom expansion double bottom sand fishing drill


The applicable stratum is mainly used for complex stratum such as soil stratum, sand pebble, weathered rock, etc., and the bottom reamer is added to realize large aperture drilling.

Rock-socketed barrel drill with centralizer


It is suitable for stratigraphic graded drilling to form holes for many times. First, a small barrel drill is used to reduce the resistance during drilling, realize efficient crushing of rocks, and make up for the lack of drilling rig capacity. Its righting device can ensure that the pile hole does not tilt and offset during drilling.

Double-layer rock-socketed barrel drill


The applicable formation double-layer barrel drill has the characteristics of high drilling efficiency, strong slag carrying capacity and small drilling tooth loss in the gravel layer.