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Is it easy to bump a mul-t-lock ?


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#1 stevenlau2006

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Posted 15 October 2007 - 07:35 AM

if yes, how bout the bump keys, can we make it by ourself, just by hand?

#2 theopratr

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Posted 15 October 2007 - 11:50 AM

The majority of high security locks made by Assa Abloy (the company which owns Mul-T-Lock) are impossible to bump, due to the presence of sidebars and/or non-pin tumbler mechanisms.

Even if you were to find a Mul-T-Lock that was not a sidebar system, a bump key for this type of lock is not something you can make by hand.

#3 NDE

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Posted 15 October 2007 - 01:44 PM

Even if you were to find a Mul-T-Lock that was not a sidebar system, a bump key for this type of lock is not something you can make by hand.


Eh... There are zero Mul-T-Lock locks from their beginning line such as garrison etc thru their interactive series that have a sidebar...

#4 theopratr

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Posted 16 October 2007 - 07:21 PM

You would be correct sir, the system that Mul-T-Lock uses is not a sidebar system - I used the term to avoid explaining the messy details of how Mul-T-Locks work. The bottom line is that you need two shear lines to be cleared at the same time, with a minimum of ten pins involved.

I have a bump key for their Garrison series, and I've only gotten the thing to work three or four times. If the cylinder is not equipped with security pins, it is much more convenient to pick the lock. Dimple-type lock picking tools make this much easier, although they aren't that common in the US.

#5 NDE

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Posted 17 October 2007 - 08:05 AM

Ah, Ok ;-). You are correct about the two shearlines. Making a key at home would be really tough for the interactive series (then you still couldnt bump all interactive series locks due to varying locations of the interactive pin). Not saying it is impossible as with enough patience and ingenuity anything is possible.

#6 american lockpicker

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Posted 06 February 2008 - 08:55 PM

What do you mean by "interactive pin"?

#7 theopratr

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Posted 07 February 2008 - 12:02 AM

The Mul-T-Lock series is rather gross if you're trying to fabricate a bump key... there are generally at least five pins, several of which have another pin seated within it. (See also, "interactive pin".) This makes bumping a serious problem, although not completely impossible.

#8 MrLocks

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Posted 08 March 2011 - 12:53 AM

The majority of high security locks made by Assa Abloy (the company which owns Mul-T-Lock) are impossible to bump, due to the presence of sidebars and/or non-pin tumbler mechanisms.

Even if you were to find a Mul-T-Lock that was not a sidebar system, a bump key for this type of lock is not something you can make by hand.

Yeah I agree with you that a bump key for this type of lock can not be made by hand.
Sandy