Drilling tool bit for blind hole drilling

The utility model discloses a drilling tool drill bit for blind hole drilling, which comprises a drill bit main body, the end part of the drill bit main body is fixedly connected with a drilling plate, the side wall of the drill bit main body is provided with a positioning insertion hole, the side w...

Ausführliche Beschreibung

Bibliographische Detailangaben

Hauptverfasser:	LIU WEI, WU DI, LIU HUANLI, MAO XINFU, ZHAO ZHIHAN
Format:	Patent
Sprache:	chi ; eng
Schlagworte:	EARTH DRILLING EARTH DRILLING, e.g. DEEP DRILLING FIXED CONSTRUCTIONS MINING OBTAINING OIL, GAS, WATER, SOLUBLE OR MELTABLE MATERIALS OR ASLURRY OF MINERALS FROM WELLS
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