Best construction core bitting.
Just to be clear I am not trying to use the keys on any building (never even seen a place with construction cores in use) I just want to get some keys for my friend and hopefully he will give me some of the cores.
also I created this account a while ago but never really got on till 2016 and was wondering if there is anything I could do to become someone more than a noob asking suspicious questions about locks. because I am really into locks and have been collecting keys for quite a while.
Thanks - Q3b