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Application filed by Вадим Васильович Вада, Вадим Васильевич ВадаfiledCriticalВадим Васильович Вада
Priority to UA2000052740UpriorityCriticalpatent/UA717U/en
Publication of UA717UpublicationCriticalpatent/UA717U/en
Auger drill beam has auger with drill bit fixed at its end, those have through long central opening. Utility model relates to drilling equipment and can be used for drilling very hard rocks under harmful for human person and environment conditions.