Insert with locking projection

Details Insert with locking projection Insert with locking projection

E - Fixed Constructions

21

B

255/69

E21B 10/16 (2006.01) E21B 10/52 (2006.01) E21B 10/56 (2006.01) E21B 10/62 (2006.01)

Patent

CA 1158635

ABSTRACT OF THE DISCLOSURE A cutting element insert for an earth boring bit has one or more small projections formed on its bottom. The projections are offset from the axis of the insert. When the insert is pressed into the hole in the supporting structure of the bit, the projections will embed into the bottom of the hole to help retain the insert against rotation.

388579

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