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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。
hellotom
2022-02-06 08:45:14
( reads)
跟帖(2)
jassco
2022-02-06 10:01:10
I would start with a 3/16" drill bit. Small
DC_Jeeper
2022-02-06 13:40:12
谢谢
jassco
2022-02-06 10:01:10I would start with a 3/16" drill bit. Small