Earth boring auger

Details Earth boring auger Earth boring auger

E - Fixed Constructions

21

B

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E21B 10/00 (2006.01) E21B 10/12 (2006.01) E21B 10/22 (2006.01) E21B 10/44 (2006.01)

Patent

CA 1053657

ABSTRACT OF THE DISCLOSURE An earth boring auger having a shaft and helical flights thereon and a plurality of disc cutters mounted below the flights to engage the formation before it is engaged by the flights.

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