Cutting member for rotary drill bits

Details Cutting member for rotary drill bits Cutting member for rotary drill bits

E - Fixed Constructions

21

B

255/68

E21B 10/58 (2006.01) E21B 10/56 (2006.01)

Patent

CA 1179673

ABSTRACT A cutting member for rotary drill bits consists of a carrier member with a supporting face which consists of two component supporting faces adjoining one another in wedge-shape forming a front edge, and applied to each of the two component supporting faces is a supporting member together with a cutting layer which occupies the whole area. The cutting member which is wedge-shaped in its contours develops high drilling performances particularly in comparatively soft ground formations and is considerably cheaper than known wedge-shaped cutting members and renders possible an extensive variability in the formation of the supporting members together with the cutting layers and their arrangement on the carrier member.

398724

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