please send email to ask them.

@luude Did you get your answer answered?

@sbsivertsen No I did not ... rudi

@sbsivertsen, For a faster answer, please post your question as a new topic in the **JLCPCB** category.

@luudee @sbsivertsen Hello As Andy already mentioned, Please to post the JLCPCB related questions in the "JLCPCB" category  :) About the castellated holes guide, here is the link for full guidance document : [https://jlcpcb.com/quote/pcbOrderFaq/Castellated%20holes#:~:text=What%20is%20Castellated%20holes%20/%20half,a%20PCB%20to%20another%20one.](https://jlcpcb.com/quote/pcbOrderFaq/Castellated%20holes#:~:text=What%20is%20Castellated%20holes%20%2F%20half,a%20PCB%20to%20another%20one.) Please to note that the minimum diameter of castellated holes is 0.60mm.

@JLCPCBsupport Thank you for your message and the link. The link answers my question. Thank you ! rudi