DUDLEY LOCK CRACK METHOD

by **scorpiac** » 23 Mar 2007 22:00

scorpiac wrote:
butterboy wrote:Are there key locks as good as they make them sound,? Im only asking because i have never heard of them.

I have a key operated Dudley padlock it's brass and just says Dudley on it there's no model # or anything and I no longer have the packaging. I haven't been able to open this thing by spp or raking for the life of me but I have been able to open it due to one Major security flaw. There is no lip around the plug preventing you from shimming it (which I've done with one of those little metal strips out of a security tag). I am of coarse talking about the type of shimming you would normally do to a deadbolt cylinder from the rear of the cylinder.

Phil.

Just incase anyone is interested, the key operated Dudley I refered to in this thread earlier today is a BP40SP I had a look at the package while at walmart today to find the model #.

Phil.

by **Stas** » 24 Mar 2007 2:30

I think that's an awesome find! (the shimmable cylinder vulnerability that is).. I wonder if many other padlocks (probably not deadbolts heh) are susceptible to this...

by **mercurial** » 24 Mar 2007 3:05

Stas wrote:I think that's an awesome find! (the shimmable cylinder vulnerability that is).. I wonder if many other padlocks (probably not deadbolts heh) are susceptible to this...

It is always worth looking for this vulnerability - especially on cheap chinese made padlocks - the flaw is more common than you might think. That said, any decent lock will have the lip on the plug to prevent this.

Deadlock cylinders need to have this lip - it is what is stopping the plug sliding back into the shell when the shearline is clear. Without it the plug would easily push backwards into the shell when you unlock it.

Tolerances are occasionally *so* poor that a shim can be pushed over the lip!

...Mark

by **H3A7** » 25 Mar 2007 1:37

Im sorry Stas, but is it possible to put it into even simpler form? I don't fully understand some parts of your method. Thanks, it'll be greatly appreciated.

by **Stas** » 25 Mar 2007 2:00

No problem

which part are you having trouble with?

by **chips** » 7 Apr 2007 3:43

Stas, thanks for your incredibly detailed post. I have a couple old (10 years) Dudley's that I had forgotten the combos to. The first lock is still baffling me, but the second lock I was able to open within a few minutes.

by **H3A7** » 10 Apr 2007 10:16

Can anyone shoot a video of opening one with this method?

by **cormier** » 12 Jul 2007 0:52

wow... i can't believe this thread is still goin...saw a few new methods...hope mine is still holding up and helpin some people :lol:

by **samfishers** » 28 Jul 2007 13:11

I have opened a combo lock with a metal lathe. Ill show you guys soon, and ill maybe do a video of it and how it works!

It's all mechanics!

by **Jaakko** » 28 Jul 2007 13:28

Lathe? Excuse me? Do you really opened it with a lathe or do you mean endmill?

by **Gordon Airporte** » 28 Jul 2007 20:08

Jaakko wrote:Lathe? Excuse me? Do you really opened it with a lathe or do you mean endmill?

A lathe seems plausible. You just chuck the lock, the locker its attached to, and the wall the locker is on into the lathe, then you spin the lock so the discs are shifting constantly, when they align the shackle flies open because of centrifugal (or is it centripetal?) force. Simple.

I heart this thread :-)

.

by **samfishers** » 29 Jul 2007 16:27

no i meant i opened it, like to see the inside. cause i'm a visual guy and I wanted to know what is inside. I did not pop opend it.

by **samfishers** » 29 Jul 2007 16:29

no i meant i opened it, like to see the inside. cause i'm a visual guy and I wanted to know what is inside. I did not pop opend it.

by **Yammiez** » 5 Sep 2009 11:34

I had three old dudley locks collecting dust because me, my brother or my sister forgot the combos to them. Remembering this thread, I decided to take another crack at it.

Using the First method (in the first post), I got one of them to open (B on the back, "Dudley" in proper casing, black dial in front).

The other two locks didn't work, but after reading the posts by Stas I'll try that and report back.

by **yingyangboy** » 10 Dec 2009 12:52

I got a G dudley lock with only two sticky points 48-53 and 35-39, therefore my possible number combination for the first two set of numbers as per your instructions are 60,28 or 28,60 or 42,46 or 46,42. Can you please confirm if this is correct? I have experimented with the combo set and can not get the lock open. Can you please provide any further information details?

Thanx

DUDLEY LOCK CRACK METHOD

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