Core drill bit with geometrically defined cutting elements

Details Core drill bit with geometrically defined cutting elements Core drill bit with geometrically defined cutting elements

B - Operations, Transporting

23

B

B23B 51/00 (2006.01) B23B 51/04 (2006.01) E21B 10/48 (2006.01)

Patent

CA 2430543

A core drill bit with at least two geometrically defined, flat cutting elements, wherein at least a first cutting element has an axial rake angle (.alpha.1) and a radial rake angle (.beta.1) and a second cutting element with an axial rake angle (.alpha.2) and a radial rake angle (.beta.2) is present, wherein different axial rake angles (.alpha.1 .noteq. .alpha.2) and / or different radial rake angles (.beta.1 .noteq. .beta.2) are present or at least one cutting element is present with a radial rake angle not equal to zero (.beta.1 .noteq.0).

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