Rotary drill bit

Details Rotary drill bit Rotary drill bit

E - Fixed Constructions

21

B

255/69

E21B 10/00 (2006.01)

Patent

CA 1077018

ABSTRACT OF THE DISCLOSURE A rotary drill bit for rock drilling comprising a plurality of cutting elements mounted by interference-fit in recesses in the crown of the drill bit. Each cutting element com- prises an elongated pin with a thin layer of polycrystalline diamond bonded to the free end of the pin.

284200

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