I would start with a 3/16" drill bit. Small

来源: jassco 于 2022-02-06 10:01:10 [] [旧帖] [给我悄悄话] 阅读数 : (89 bytes)

drill bits are very easy to break.

Good luck!

Alex

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• 谢谢 -DC_Jeeper- ♂ 给 DC_Jeeper 发送悄悄话 (0 bytes) () 02/06/2022 postreply 13:40:12

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