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Application filed by Дрогобицький Долотний Завод, Дрогобычский долотный заводfiledCriticalДрогобицький Долотний Завод
Priority to UA4671721ApriorityCriticalpatent/UA5649A1/en
Publication of UA5649A1publicationCriticalpatent/UA5649A1/en
Finish Polishing, Edge Sharpening, And Grinding By Specific Grinding Devices
(AREA)
Abstract
Roller cutter drill bit has body and milling teeth with side surfaces, cutter edge and sharpening angle placed on main and peripheral teeth. Teeth at all the crowns are arranged with same angle of sharpening and cutter edge parallel to basis of tooth.
UA4671721A1989-03-311989-03-31Roller-cutter of drill bit and device for making it
UA5649A1
(en)