Drill bit for pre-embedded drilling of telegraph pole

The invention discloses a drill bit for pre-buried drilling of a telegraph pole, belongs to the technical field of drilling drill bits, and aims to solve the problems of low drilling precision, soil accumulation and the like at present. The drill bit comprises a drill bit body, the outer sides of tw...

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Bibliographische Detailangaben
Hauptverfasser:	HAN YELIN, WU YIWEI, WU HAO, ZHANG ZHANYAO, ZHU CHUNYU
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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