Keys cost like what, $2 to copy at a locksmith? But where’s the fun in that? Here’s an easy way to cut your own keys using a CNC mill! [Bolsterman] now “works” for a real estate company that rents out ...

When lock maker Schlage imprinted the words "do not duplicate" across the top of the keys for their high-security Primus locks, they meant to create another barrier to reproducing a piece of metal ...