jack iphone 7

hi,

I have an iphone 7 without jack and i already sold my house to buy it, i don't have enough money to buy an adaptor. So here is my question:
people keep telling my that if i dig a hole with a drill it wont work, but they aren't pro so i'd like to have your point of view and advices

thanks

Hello,
Please look at this
https://www.youtube.com/watch?v=5tqH-Un9SFU

Best regards
Antoine