Sargent & Greenleaf 0881 Keys

thingiverse

WARNING: DO NOT ATTEMPT TO USE THESE YET! Or, if you do, replicate them exactly as they are now. I made a critical error and created them with reversed configurations so they will become stuck in the lock. The backstory is this: The S&G 0881 was a robust disc detainer lock utilized by the US military at one point. When the military decommissioned these locks, they destroyed all the keys but simply discarded the locks themselves. This lock features three discs with three feasible positions for each disc, resulting in 27 possible key combinations. However, this number is reduced to 17 possibilities once you take into account two essential facts: the discs are not all cut to the same position and the keys are not configured to allow removal while the lock is unlocked. Thanks to BosnianBill's (of YouTube fame) diligent work, we now have a handy chart detailing the bitting on most of the valid keys. I've used this chart to create these. Please note: No one should still be using these locks. They are extremely vulnerable to picking and the information required to manufacture keys for them has been publicly available online for years. If you encounter someone using one, kindly inform them about these facts rather than utilizing these to break into a location they believe is secure. Instead, point them towards the S&G 0883, an updated version of these locks that offers enhanced security.