Drill bit

Details Drill bit Drill bit

B - Operations, Transporting

25

D

B25D 17/02 (2006.01) E21B 10/36 (2006.01) E21B 17/04 (2006.01)

Patent

CA 2121645

14 A rotary or rotary/percussion drill bit 10 has a taper socket 14 in one end. A wall 18 bounds the socket 14. A plurality of recesses 20 is provided in the wall. In one embodiment, each recess 20 extends longitudinally and resembles a flute. It has a valley 22 flanked by peaks 24. In another embodiment, the recesses may be circumferential, e.g. helical.

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