Challenge Lock Name | Mario |
Description | Mario is Edoc Dab’s first challenge lock. It is intended as a fun pick. |
Creator | Edoc Dab |
About the CL | This was first used in the video on how to create a practice lock: https://www.youtube.com/watch?v=5dF2zS_rLkY Then I modified the drivers, key pins etc to turn this into a challenge lock. As it’s a double euro cylinder, I left the other side untouched for comparison. The same key operates both sides. |
Lockpicker | First picked for verification by Edoc Dab (no video) Next victims: 1) Hell Angel |
Location | Netherlands for creation and for Hell Angel |
Remarks | Gutting The grub screws can be easily removed with a metric hex wrench. Please don’t put them tight as that is not needed. I didn’t have an extra wrench at the time of sending it around unfortunately. You can file one if needed, use pliers or worst case cut a groove in the top for a standard flat head screwdriver if really needed. If you insist on a traditional gutting, you could use the core as follower or segmented followers as well, but that’s a big hassle with a double euro cylinder. [spoiler alert] A shim is probably not needed on this lock. |
Lock details (SPOILER ALERT!)
For all the details of this lock and the ideas behind it, this video covers the lot: https://www.youtube.com/watch?v=EzdcTayI-Yo


Note the tapers and reduced diameters to help with the correct orientation in the lock.

You are good to go 😉
i liked it a lot! cool challenge lock, very fun to figure out! 5/5! 🙂
Picking video: https://www.youtube.com/watch?v=b5XmbL2Be7E
Next picker: Reinder