Rotary boring bit

Details Rotary boring bit Rotary boring bit

E - Fixed Constructions

21

B

255/68

E21B 10/00 (2006.01) B23B 27/14 (2006.01) B23P 15/30 (2006.01) E21B 10/46 (2006.01) E21B 10/48 (2006.01) E21B 10/56 (2006.01) E21B 10/58 (2006.01) E21B 10/60 (2006.01)

Patent

CA 1132971

ABSTRACT A rotary boring bit for boreholes comprises a body provided on its outer periphery with cutting members (6) consisting of a cutting portion (8) and a supporting portion (7), each cutting member being formed as a segment of a sintered body (1) having a core (3) of cutting material encased by a shell (2).

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