and Wiki says; A double-sided key is very similar to a house or car key with the exception that it has two sets of teeth, an upper level standard set of teeth and a lower, less defined set of teeth beside it. This makes the double-sided key's profile and its corresponding lock look very similar to a standard key while making the attempt to pick the lock more difficult.
OOoo could you tell us the name of the film?? Then when I watch it and a clip of a double sided key comes up I can say I helped contribute to that shot? :o)
Will my name be in the credits?
Special thanx to ~Wingnut~
(you know who you are)
for their contribution and assistance
of double sided keys
Only jesting joko :o)
In a silly mood tonight, just hope I've been of some help. Enjoy the rest of your weekend :o)