Angled Picks
#1 looks like a deforest/offset diamond but it is not, the end is flat. #1 is the same concept as #2 with a differing angle. The idea behind #3 being a low angle for inserting past deep cut pins and manipulating pins in the back of the lock.
The code is hidden in the tumblers. One position opens the lock, another position opens one of these doors...
http://www.youtube.com/xeotech1
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