作者: Eduardo Barnetche-Gonzalez
DOI:
关键词: Frustum 、 Drill 、 Acoustics 、 Coaxial 、 Geology 、 Engineering drawing 、 Head (vessel) 、 Integrally closed 、 Drill bit 、 Base (geometry) 、 Drilling
摘要: The present invention is directed to a cutting head for use in rotary drill bit which the comprises stem and base integrally formed with stem. has first surface defined by frustrum of cone or other shape second shape, wherein surfaces are coaxial axis head. adapted be attached such that oriented at an angle respect bit.