Master Lock Co. Introduces Pro Series® High Security Padlock

[jimb]

http://www.amonline.com/article/article.jsp?siteSection=1&id=16032

[pinsetter]

I've been noticing something:

On these locks with double ball locking mechanisms, the package or description usually states " Provides added protection against pulling and prying" or something similar.
Never do they state that it provides complete protection against shimming.
Is this because they don't want to inadvertantly tell the public that their other styles of locks are susceptable to being opened with a piece of a beer or soda can?

[jordyh]

Probably, the bad PR would kill them.
They'd never survive the slaughter without a decent explanation (which involves putting the blame on the lockpicking community).

my £0.02.

Yours,

Jordy

[pinsetter]

could also be that they don't want to mention shimming to keep people that don't know about it from finding out. IE...someone picks up a lock in the store and reads "Full protection against shimming" and thinks "Hmm, what is shimming?" So he goes and does a quick net search and gets complete detailed instructions on the bypass method.

Maybe it's one of those little "closely guarded secrets", or as closely guarded as possible anyway.

Maybe a combination of both aspects!

[LockNewbie21]

All true, They are masters better locks still pickable, but to a robber a very good deterent, My crew at work use the whats the number 376 or somthing to lock up our tool belts and electric tools over night, being construstion workers that we are we destroyed one.. because some idiot lost the key but even with our angle grinder still took a considerable amount of time to get the stupid thing open.. and yes our tools where in it still my boss had to run home and get his spare angle grinder (day of hell at work after that) i probobly could have picked it, but i dont bring them to work, i do know but never had a problem.

Andy

[tweed]

could somone give me a quick rundown of how double ball locking mechanisms are different and how they resist shimming while others don't.

[hzatorsk]

could somone give me a quick rundown of how double ball locking mechanisms are different and how they resist shimming while others don't.

Instead of a spring loaded relocking pawl... Imagine a ball bearing that is allowed to roll back away from the shackle when the proper key turns the plug.

A side effect is that the key must usually be used again to relock the lock.

Dual ball would indicate that both sides of the shackle are locked with these ball bearings.

[LockNewbie21]

The names suggests alot theres two balls that lock the shackle, these cannot be pushed beacuse the lock must be open to allow the plug inside to turn allowing the two balls to recess within it, thus making them imovable without the plug being turned. So the the way there layed out it is very true and can be proven that shims will never work. Hope i helped buddy.


Andy

[vector40]

It's easier to understand with an illustration. Pretty straightforward.

[tweed]

ah, now i understand. thanks for the info guys