Button insert for rock drill bits

Details Button insert for rock drill bits Button insert for rock drill bits

E - Fixed Constructions

21

B

255/69

E21B 10/56 (2006.01)

Patent

CA 1253138

Abstract A button insert (10) for rock drill bits comprising a base portion (11) intended to be secured in the body of the drill bit and a cutting tip (12) being integral with the base portion (11). The cutting tip (12) comprises a portion (13) that is concave in an arbitrary longitudinal section through the button insert (10). (Fig. 1)

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