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U.S. Department of Energy
Office of Scientific and Technical Information

Rotary drill bit

Patent ·
OSTI ID:5762793
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 comprises an elongated pin with a thin layer of polycrystalline diamond bonded to the free end of the pin. 56 claims.
Assignee:
General Electric Co.
Patent Number(s):
US 4109737
OSTI ID:
5762793
Country of Publication:
United States
Language:
English