Cutter for maintaining edge sharpness

Details Cutter for maintaining edge sharpness Cutter for maintaining edge sharpness

E - Fixed Constructions

21

B

E21B 10/46 (2006.01)

Patent

CA 2538807

A cutter comprising a base portion, an ultrahard layer disposed on said base portion, and at least one recessed region on an outer surface of the cutter. A start of the recessed region disposed a selected distance behind a cutting face.

Dispositif de coupe comprenant une base, une gaine ultradure disposée sur ladite base et au moins un endroit renfoncé sur une surface extérieure du dispositif de coupe. Le renfoncement débute à une distance déterminée derrière une surface de coupe.

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