发明授权
US5279375A Multidirectional drill bit cutter 失效
多向钻头铣刀

Multidirectional drill bit cutter
摘要:
A multidirectional drill bit cutter comprising a cylindrical stud having a layer of polycrystalline diamond formed thereabout. In one embodiment the stud is fortified with diamond grit and diamond rods to reduce stud wear and to reduce the depth of cut taken by the polycrystalline diamond cutting element formed about the stud. In another aspect of the invention, an earth-boring drilling system having a pair of flat profile bits utilizes multidirectional cutters in a manner which causes them to cut from a plurality of different directions.
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