Rotary drill bit

Details Rotary drill bit Rotary drill bit

E - Fixed Constructions

21

B

255/74

E21B 10/18 (2006.01) E21B 10/20 (2006.01) E21B 10/24 (2006.01) E21B 10/44 (2006.01)

Patent

CA 1296708

ABSTRACT A drill bit for drilling into earth formations comprising a plurality of sections having connection means to connect said sections to form a unitary drill bit; means in said plurality of sections for storing and delivering lubricants to the cutting cones; and wear bar segments on said plurality of sections to form continuous wear bars about the periphery of said unitary drill bit thus reducing the wear on said unitary drill bit.

556510

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