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沉孔钻头怎么磨
更新时间: 2021-03-08 02:21:35  

1、沉孔钻头磨法如下:

2、手磨两边刃180度,【180度平底】中间留钻尖高于刃几毫米,【根据底孔大小实践中定】分两次磨,先磨两刃再磨钻尖,尖大小由底孔定,尖底宽大于底孔2毫米,起到底孔倒角作用。磨沉孔钻需有实践经验才能磨好。

关键词: 钻头 怎么

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