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304不锈钢用哪种钻头打孔好
更新时间: 2020-11-09 00:00:00  

一种是含钴高速钢钻头,一种是高性能硬质合金钻头,含钴高速钢钻头价格便宜,但是寿命短,效率低不少,精度差一些,需要前序定心钻效果更好。硬质合金不锈钢专用钻头价格贵,但是寿命还可以,效率高不少,孔的尺寸精度也高,光洁度也高不少,不需要定心钻加工,可直接钻孔。

关键词: 不锈钢 钻头 打孔

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