试一试先用细drill钻孔,再换大一点的,依次扩孔,直到可以放进extractor bit. 注意加钻油降温。
所有跟帖:
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I would start with a 3/16" drill bit. Small
-jassco-
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02/06/2022 postreply
10:01:10
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谢谢
-DC_Jeeper-
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02/06/2022 postreply
13:40:12