Is it possible to make a bump key that is compatible for both 4-pin and 5-pin laminated Master Locks (#3 and #21 etc.)?
My thinking is that, if the spacing between the teeth are about the same, it should work?
I made a #3 bump key, and it works great on most of my #3 and #5 locks. I just think it would be handy to have a "master" bump key that would work on most laminated master locks.
Has anyone else created/know of keys like this?
Thanks!