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Drill bit
专利权人:
Bremajek Holdings Pty Ltd
发明人:
LAIRD, Ewen James
申请号:
AU2019210163
公开号:
AU2019210163B2
申请日:
2019.01.15
申请国别(地区):
AU
年份:
2020
代理人:
摘要:
A drill bit having a longitudinal axis to perform a drilling operation. A tapered tip extends from the proximal end and terminates in an apexat an end of the drill bit. The drill bit also comprises a plurality of flutes with each flute extending helically along the body into the tip. The drill bit also comprises a land between each of the flutes extends to the tip. The drill bit also comprises a plurality of tip faces on the tip and extends from a corresponding land to the apex, where each of the tip faces has a tip face leading edge and a tip face trailing edge. Each of tip face leading edges forms an intersection with an adjacent one of the flutes to provide a plurality of primary cutting edges. Each of the flutes (140) helically extends in an opposite direction to the drilling direction.
来源网站:
中国工程科技知识中心
来源网址:
http://www.ckcest.cn/home/

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