While I will check the comments, it's easier to get a message to me on Twitter...https://twitter.com/deviantollam
Plenty of my other videos, longer talks, and loads of other whatnot regarding locks, firearms, travel, food, and more are on my site...https://deviating.net
Almost a decade ago, back in 2010, TOOOL spoke at DEF CON 18 and we revealed a lot of research we had been doing with respect to handcuffs from around the world.
By combining all of our collections, and taking exacting measurements of many models and their keys, we were able to offer up specifications for what we felt (and still do feel) is the "Ultimate" handcuff key... one that can fit in as many makes and models of cuff as possible.
This video is a quick guide to help you make your own if you're interested in modifying an existing key in order to turn it into our "Universal" handcuff key.
Good luck! (And, if you wish, stick around to the end for a special free giveaway for one lucky viewer!)
NOTE: The winner of the handcuff key has been chosen. By random selection (viewable here... https://twitter.com/deviantollam/status/1181425733077491714)
the winner is Garak. I have replied to him below and we'll hopefully connect soon. Nice work, everybody!