(1896) Zeiss Ikon 7-Pin Euro Picked & Gutted 

Great pictures on the web page you linked to. Thanks! But in all fairness to Bill, without knowing the internal details of the lock it would have been extremely difficult to disassemble it without cutting it in half. And even following the instructions you linked to, the order of the driver pins would have been lost.

@@tomferrin1148 Not if you pull out the pin holder very slowly and take the pins out one by one. I've disassembled and assembled a lot of those locks, it's a hassle but works very well.

​@@tomferrin1148 Indeed, without some Google search, you would not guess howto disassemble. But disassembly, without loosing the pin order, is possible using a pinning shoe. This cylinder was in a very good condition, respecting it was from the 70ties. Sadly it was destroyed.

@neil Cut first, ask later ;-)

Do you happen to know, in the circumstances you describe can the resident change their own locks and use two keys if they wish?

@@johnrich6928Yes, you just should keep the original lock and put it back when you move out again. It is fairly easy to change these locks. Also it is not allowed for the landlord to keep a key to your apartment without your knowledge or against your wish, so it is your right to change your locks any time.

@@lestatloewenhof5368 cheers.

@@lestatloewenhof5368 That would depend on the country. In some countries the landlord IS allowed to keep a key and changing the locks would be a violation of contract. However they may not enter without permission except in case of emergencies. If the landlord enters without permission it is a serious crime.

@@mrfrenzy. I guess so, I was talking about Germany, as this is a german lock :)

Welcome! His videos are awesome and got me hooked as well. Now I’ve spent many hundreds of dollars on locks and tools. No regrets.

Here. This will help you know what difficulty level the locks that you pick are. As you get more familiar with locks, you probably won't need it anymore, but it'll help immensely if you're new! www.reddit.com/r/lockpicking/wiki/beltranking/

Amen to that. I think it everytime i lock my front door.

Maybe look at all of his previous videos, there’s more non American locks picked the then anything else. The euro lock are a lock picking dream due to the fancy keyways

@@davedave9552 I think he means with the lock upside down like in Germany, where gravity is holding the key pins to the drivers even if the pin is set.

yeah i never understood why tok is the top when its at the botttom here lol

+1! Makes it much harder.

@@unlockeduk The only thing I can think of is that rain and junk does not collect in the Bible and corrodes the pins and springs

@@unlockeduk TOK is always towards the pins, regardless of the orientation in which the lock is designed to be installed. It is from the perspective of the keyway itself. Same with padlocks, when haning somewhere the pins are on the sides usually, still TOK and BOK are the same. Regarding why the Euro Profile is "upside down". Pins were at the top initially on all kind of pin tumblers. When Zeiss Ikon came up with the design of what is called these days Euro Profile in 1928, one of the unique selling proposition was that their cylinder does not need a cutout that is much larger than a keyhole and can be used with existing doors and locking mechanism. They came up with a full modular system much like today that also required less material than the round cylinders. Hence for that reason the pins in the "Hahnprofil" (that how it was called) are at the bottom. It was a success and spread in across Europe and beyond and other manufacturers licensed the patents as well quickly, because of the ease of adoption in most of continental Europe . Zeiss Ikon saw the potential in licensing as well right form the start. It is not like the companties that made up Zeiss Ikon were noobs in the lock business or newcomers in Europe. Orientation of the pins does not matter as theiy are spring loaded, and dirt/corrosion makes no difference. They knew about that 100 years ago and it was no issue back then, not an issue today. Really, Euro Profile just a differnet design that sold better in a different market initially when the global market for pin tumblers was "fresh".

@@Scythe42 ok that was more info than i expected lol

I think one of the reason he puts his hand behind the lock is also so we can can see him picking

LockSport enthusiasts follow the rules/ethics of the hobby & are only trying to open the lock or device. Any locks being picked are not to be actively in use & the picker is supposed to have permission from the owner of the lock. Holding them in a vise, with a stand, or in one's hand is simply a preference for each individual. In Bill's case he has demonstrated many real-world scenarios of picking for viewers. However, holding locks in a vise, is often done to improve the video's framing & focus. This also allows any 'feedback' from a lock to be shown in greater detail for newbies to learn from it. There are LockSport groups that focus on authenticity & picking locks in real-world applications. But, for most LockSporters they leave that to locksmiths & just want to improve their skills & abilities in comfortable ways & within the rules of the LockSport community.

My guess would be that it keeps the spring from fully compressing. If most springs fully compress but the two with the ball bearings don’t, it’s impossible to bump.

I'm guessing it's to give the springs different mass/inertia (when mounted top-upward, like in America), as well as different maximum compression depth before stopping, both of which result in different timing than the rest of the springs. The balls seem loose inside the spring, which means they won't increase tension (since the whole spring can still compress evenly around them). We shouldn't overthink the final positions of the balls within their springs in this gut, but we can gain additional info from how they'd be mounted in Europe: springs-below-pins. If the balls roll downward when mounted, then their position won't change when bumped, and thus mass/inertia is irrelevant. So if their only real-world function is to prevent as much overlift travel distance during bumping, then the lock's still bumpable, only with tighter timing before the first pins drop back down.

@@curlyvideos the balls are intended as an anti-combpick measure, not anti bump. If you're able to read German, check the koksa wiki on this one

I was about to mention that he never checked that

Maybe a kind of break, that keeps the lock from being opened when one key is already inserted (on the inside of the home)

Unlikely. Euro locks are typically mounted with the springs on the bottom, which means balls will fall to the bottom and will be far away from the pins. Drilling is typically done through the pinstack or right next to driver pins.

@@ntrf-xyz mm, that makes sense. i couldnt think of anything else it could be.

It is in fact not really master keyed. It's quite the opposite. This lock is used for the front door of an apartment building, each apartment has only slightly different keys but they all can open this front door lock. This was you don't need extra keys for front door and apartment, everyone can ooen the front door with their apartment key but only their own apartment.

@@lestatloewenhof5368 Okay I take it back. Maybe it can't be disassembled but that would be peculiar. We call that vestibule keying and I've found locks with only three pins and so stacked with master pins about anything would open it.

how would you have done that?? bill does, as he mentioned, often take them apart. but with no clip or detent, i see no other way

I don't see any other way.

@@firesurfer These ZEiSS-Zylinders are verry specially ... sometimes You have a small pin in a hole, or something other to open these ... but it is possible ... it would be a shame to saw everything up , especally old Versions of Cylinders which are not more produced ....

@@FrauHaferniehl Show me a timestamp. Anything. I see nothing.