Method of manufacturing large diameter oil well drilling bit...

Details Method of manufacturing large diameter oil well drilling bit... Method of manufacturing large diameter oil well drilling bit...

E - Fixed Constructions

21

B

76/21, 255/77

E21B 10/22 (2006.01)

Patent

CA 1182105

ABSTRACT OF THE INVENTION The present invention discloses a large diameter oil well drilling bit which utilizes a unique cast body upon which are secured a plurality of cutting assemblies comprising a leg, a bearing journal and a rolling cutter mounted on the bearing journal.

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