Earth drilling apparatus

Details Earth drilling apparatus Earth drilling apparatus

E - Fixed Constructions

21

B

E21B 3/00 (2006.01)

Patent

CA 2058784

An earth drilling apparatus for use with a vehicle of a type which performs utility pole hole drilling operations is disclosed. The apparatus attaches to an end of a movable boom mounted on the vehicle. The apparatus includes an elongated guide attachable to the boom and to the ground. A drill head is movably attached along at least a portion of the guide, and a drill bit is rotatably attached to the drill head. A loop of chain advances and retracts the drill means along the guide.

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