Zero risk. HIV is only transmitted by unprotected vaginal, anal sex and by sharing of needles.
Regardless if the person had HIV or not.
I asked the same in another place and they told me it was possible if the blood mixed, but since the punch was a snap yeah I also tought it was zero risk, but I just wanted to confirm. Thank you for your fast reply!
Doesn't contact between wounds transmit the desease though?
Thank you both for the help! My mind is now more comfortable! :)