Bumping a master lock ?

[Millow]

Hello,

I've successfully bumped an ASSA TWIN lock rather easily. Was pretty surprise actually.

I was wondering, Master locks have more than 2 pins in each cylinders. So are they bump proof because of that ? Since the middle pin would not move at all due to Newton's law, it could be stuck on the shear line, thus making the lock unbumppable..?

I hope this question will not be seen as suspicious this time...

[UWSDWF]

are you high?

[Eyes_Only]

By master lock and judging by your discription I assume you mean a master keyed lock? If so I believe it can be bumped. A master keyed lock is no problem for a pick gun or even the use of a rake pick can set the pins in place so a bump key shouldn't have any problems. Mark Tobias even mentioned in the video from HOPE Number 6 that a IC lock can be bumped so I don't see why not for a regular master keyed lock.

[Millow]

Sorry, my first language is not english.

And yes, I'm high, and yes I was talking about a master keyed lock. I still have doubts about bumping a master keyed lock though because of the possibility of having a pin right on the shear line.

[Millow]

Problem with bumping is that the pins never set on the lip created by the torque wrench.

They just fly up and while they're in the air, you open the lock. Anyway, hope someone understands what I'm getting to.

[hellbent1979]

actually bumping a master keyed lock is just as simple as bumping a regular lock. Remember the pool balls, newtons law. lets just remember that this is lockpicking101 not lockbumping101. Bumping my wife can do, practice with your picks!

[UWSDWF]

yes it is totally possible think about newtons cradle

[Millow]

Yah,

Newton's cradle is giving me headache. I'll try to explain a little more clearer what I have in mind.

If the cylinder has 3 pins and the second pins is at the shear line height. The second pin is blocking the shear line I mean, like the middle of the pin is at the shear line.

So, when you bump the lock, only the 3rd pin, the higher one, will go up due to Newton'S law. That means that the second pin that is right at the shear line will still block it, thus, not allowing the lock to open even though there is a gap between the 3rd and 2nd pin.

What do u guys think ?

[freakparade3]

Sorry, my first language is not english.

And yes, I'm high

You got to admire that kind of honesty

[UWSDWF]

Yah,

Newton's cradle is giving me headache. I'll try to explain a little more clearer what I have in mind.

If the cylinder has 3 pins and the second pins is at the shear line height. The second pin is blocking the shear line I mean, like the middle of the pin is at the shear line.

So, when you bump the lock, only the 3rd pin, the higher one, will go up due to Newton'S law. That means that the second pin that is right at the shear line will still block it, thus, not allowing the lock to open even though there is a gap between the 3rd and 2nd pin.

What do u guys think ?

You only need one pin to go above the line of sheer

[Trip Doctor]

I think I know exactly what you are talking about Millow (maybe it's cuz i'm high too, hah). I can't say I have the answer though. Taking the situation you described, perhaps the slope of the 'hill'/'spike' on the bumpkey would first raise the whole stack, before the topmost pin being thrown up, causing the middle pin to go over the shear line before the stack is actually thrown up. Just an idea. Maybe if you hit it harder it will kick both the middle and top pins up... but that doesn't follow Newton's Law does it ..?

[Millow]

Hey Trip,

Nope, Newton's law says that only the top pin would move. What I would really need is a cutaway master keyed lock to be sure.

I really don't know. I guees I'll have to buy a master keyed lock and try it myself.

[UWSDWF]

or master pin a lock

[Millow]

I don't think I'm that skilled yet.

Master keying a lock would require that I add pins to the cylinders, which I don't think I can.

But thx for advice

[Chucklz]

I've bumped a master keyed lock that fits your description, I think. Bumping does a little bit more than apply kinetic energy to the pins. Remember that for a moment, the cuts on the key raise all the pins higher than the neutral position, and then moves back to the neutral position. This could be the trick to bumping these locks.