-  [WT]  [Home] [Manage]

[Return] [Entire Thread] [Last 50 posts]
Posting mode: Reply
Subject   (reply to 6444)
File URL
Embed   Help
Password  (for post and file deletion)
  • Supported file types are: 7Z, GIF, JPG, PDF, PNG, RAR, SWF, ZIP
  • Maximum file size allowed is 5120 KB.
  • Images greater than 300x300 pixels will be thumbnailed.
  • Currently 551 unique user posts. View catalog

  • Blotter updated: 2017-02-04 Show/Hide Show All

Patches and Stickers for sale here

File 140994791690.jpg - (433.25KB , 1018x690 , IMG_1361.jpg )
6444 No. 6444 ID: 0a2b37
Here we have a US Government issue Medeco Biaxial high-security lock.
It is a five or six-pin lock with a sidebar at the 3 o'clock position in the plug. The cuts on the keys are angled to interface with the angled cuts of the pins, when the correct key is inserted the pins rotate axially as they are also lifted to the sheer line, when rotated to the correct position the fingers of the sidebar may fall into grooves in the key pins allowing the sidebar to unlock. The lock also contains 2 or 3 mushroom driver pins to resist picking and hardened rods and disks in the plug to resist destructive entry methods. This lock is vulnerable to picking, impressioning, bumping and destructive methods. The lock comes with 3 keys, 2 standard and 1 control key, each is marked "U.S. Military Property Do Not Dup(licate)."
Though the Biaxial is being replaced by the Medeco M3 it is still in very common use and is also available for purchase as surplus.

Pictured from left to right is the cylinder body containing the driver pins and springs(held in by plug follower), the sidebar, the key pins, the key and the lock plug(note the hardened rods visible in the plug).
Expand all images
>> No. 6445 ID: 0a2b37
File 140994974382.jpg - (419.51KB , 852x768 , IMG_1299.jpg )
Contrast with this vintage Yale padlock, which has five straight pins and no security features as we know them today. This is the type of lock that would have been used in and around the second world war era. However the modern pin-tumbler lock was invented by Linus Yale Sr. in the 1840's based upon an ancient Egyptian design.
>> No. 6457 ID: 988d13
>The lock also contains 2 or 3 mushroom driver pins to resist picking and hardened rods and disks in the plug to resist destructive entry methods.
>This lock is vulnerable to picking, impressioning, bumping and destructive methods.
>> No. 6458 ID: 604f11
Everything has a breaking point.
>> No. 6460 ID: 059aed
  Lockpicking seems like a fun hobby.
>> No. 6463 ID: 0a2b37

Yes, "X-resistant" not mean "X-proof" It means it is rated to resist the attempt for a certain amount of time. Usually 10 to 30 minutes.


It is. Even if you never really progress past torturing a common Master Lock you can have loads of fun just doing that.
>> No. 6465 ID: 988d13
Having a breaking point is not the same as being vulnerable.
>> No. 6466 ID: 38c3cd
  There's some interesting stories about picking locks starting at 4:13:00 or so.
>> No. 6467 ID: 604f11
I was more referring to breaking in both the senses of the word. But yeah I agree.
>> No. 6501 ID: d87b8d
Google Schuyler Towne and the Medicoder...

Towne created a simple tool used for aligning the Medico Biaxial's rotating pins such as to bypass the sidebar and allow the lock to be picked via conventional news. As a matter of fact, him defeating the Biaxial caused quite a stirr in locksmithing circles and is what prompted Medico to create the M3, which addresses certain flaws that allowed Mr.Towne's device to work.

I'll be honest, though -- even knowing about the medicoder, picking a biaxial is hard. The keyway is fucking tiny, so even getting a conventional pick into it is hard as fuck, much more so given that you're dealing with mushroom pins. Hard as fuck, yes...but certainly pickable assuming you have a medicoder.
>> No. 6505 ID: d94be2
I don't have time to file myself a new set of lock picks.

Anybody have any recommendations for an affordable, but rugged set? I wanna get back into this, it's my third favorite hobby.

Preferably not Southord, I want to try another company.
>> No. 6506 ID: e68bea


>> No. 6510 ID: 0a2b37
File 141136935095.jpg - (878.75KB , 3401x2721 , sm monstrum.jpg )

Those are all secondary/EDC sets, perfectly adequate and high-quality, but not really the best for regular/repeated use.


If not Southord then probably HPC or Sparrows. The latter is quite new, they're generally better quality than Southord, but there has been some stink about them using people's pick designs without giving due credit. Their Monstrum pickset is quite redunkulous.
[Return] [Entire Thread] [Last 50 posts]

Delete post []
Report post