How can I pick a 3 number combination lock?

by **CPLP** » 27 Feb 2006 23:39

You just found out it now :?:

by **Pickermeapie** » 28 Feb 2006 0:03

youngjiggy53 wrote:I just found out that there is a key hole on the back of the Dial Combination lock, does any one know how i can pick this? It is a master lock.

Thanks

Wow, Yea... Uh... Right, Just Found Out... Ok, so there is nothing different from that lock's key bypass cylinder to lets say another pin tumbler lock. Preform a search, read/reread MIT Guide to Lockpicking, and learn. However, I must say, the thought of this lock being your's is slowly seeping away.

by **qwerty125** » 7 Mar 2006 18:14

give it up dude.. Trying to break into master locks isn't easy... I'm sure its easier for the advanced users of this board but... I'd say i'm a lock picking hobbyist and i've been trying to break into master combo locks for months.. (without a tool) I'm talking about manipulating the lock itself in order to get it open... In your case, if you was YOUR lock, you'd want to figure out the combination and not just open the lock. That is a pain in the ***. (again, at least for me... I can get my combo locks open I just can't figure out the numbers lol).
So in conclusion. If its not your lock, give it up.. its not worth your time as you'll be wasting a lot of it if you try. If it is your lock... buy another one.

by **TOWCH** » 7 Mar 2006 20:25

Post a picture that demonstrates you own the lock and someone might help you.

by **skold** » 7 Mar 2006 21:29

qwerty125 wrote:give it up dude.. Trying to break into master locks isn't easy... I'm sure its easier for the advanced users of this board but... I'd say i'm a lock picking hobbyist and i've been trying to break into master combo locks for months.. (without a tool) I'm talking about manipulating the lock itself in order to get it open... In your case, if you was YOUR lock, you'd want to figure out the combination and not just open the lock. That is a pain in the ***. (again, at least for me... I can get my combo locks open I just can't figure out the numbers lol).
So in conclusion. If its not your lock, give it up.. its not worth your time as you'll be wasting a lot of it if you try. If it is your lock... buy another one.

Why do you think a master combo lock is so hard? it is easily shimmed, easy to figure out combination and what makes life easier is having the master keys to the rear keyhole.

by **Wade** » 8 Mar 2006 0:12

just pick it like you would pick any other lock. if you still have questions use the search button, or look at the mit guide to lockpicking :wink:

by **qwerty125** » 8 Mar 2006 1:37

well.. it seemed that people were beating around the bush about how to pick it.. so i avoided such answers and using a padlock shim to open it.. or pick it.. (until I started remember .."hey he could use the search function" and find it out anyways).. i've yet to find a way to find the combinations to a combo lock. I've tried various methods and they have not worked.. I have however, shimed through master combo locks with home made padlock shims.. I've yet to pick lock a combo lock since all my combo locks don't have key holes.

by **BobboBobbo** » 8 Mar 2006 2:21

This would be it for ya - http://www.fusor.us/lockpick.html

Its easier to take a sledgehammer to it tho bud

by **youngjiggy53** » 8 Mar 2006 17:22

I tried to use a homemade shim (filed down hairpin) but, there is litterally no space between the latch and the lock....i also read somewhere that it is nearly impossible to shim these master locks because of this really narrow space.

Thanks

by **pyropnoy4life** » 27 Mar 2006 18:51

ok dude I myself am still a noob at this site, but i have in the past encountered this problem. so here is wat i have found out, there is another way besides picking the lock or finding out the combo, by trying every possible combo, becuz honestly if u do a quick bit of math there's total of 2.0397882081197443358640281739903 multiplied by 10 to the 46 power possible combos. thats more possible combo's than u could do in a year (i think). If you really own the lock take a look at this site. tho be warned that u will have to at some point probably have to cough up some cash to get that combo

http://www.masterlock.com/general/faqs_lostcom.shtml

while i know that this takes away all the fun and satisfaction of opening the lock yourself. if u do it this way it may also ease the concerns of the more senior members' concerns that its not ur lock
good luck.

by **Chucklz** » 27 Mar 2006 19:01

You ought to try your math again.

40*40*40 =64,000

by **pyropnoy4life** » 27 Mar 2006 19:42

You ought to try your math again.

40*40*40 =64,000

ok yes Chucklz my math was inncorrect. I just forgot to include the zero as a possible combo digit. but at the same time i respectfully ask that u too check your math out. because in reality there is a total of 8.1591528324789773434561126959612 multiplied by 10 to the 47 power possible combos. Truthfully its just basic algebra. (i.e. 40!) or factorial of 40. Which is 40x39x38x.....(all the way down to 1).
but wait it turns out that we are both wrong in the amount of possible combinations accordin to the Master Lock company website there are 1,500 possible combinations. at least that is how i understand the information on their website. take a look for ur self if u want to here's the link
http://www.masterlock.com/cgi-bin/class_search.pl?class_id=D19211
either way its still a lot of combos to go thru no matter how u look at it

by **Treeson** » 27 Mar 2006 20:27

pyropnoy4life wrote:
You ought to try your math again.

40*40*40 =64,000

ok yes Chucklz my math was inncorrect. I just forgot to include the zero as a possible combo digit. but at the same time i respectfully ask that u too check your math out. because in reality there is a total of 8.1591528324789773434561126959612 multiplied by 10 to the 47 power possible combos. Truthfully its just basic algebra. (i.e. 40!) or factorial of 40. Which is 40x39x38x.....(all the way down to 1).
but wait it turns out that we are both wrong in the amount of possible combinations accordin to the Master Lock company website there are 1,500 possible combinations. at least that is how i understand the information on their website. take a look for ur self if u want to here's the link
http://www.masterlock.com/cgi-bin/class_search.pl?class_id=D19211
either way its still a lot of combos to go thru no matter how u look at it

Wow there pyropnoy4life, I believe your math is still incorrect. The operation you are doing, 40! (which is called a factorial), would provide an accurate number of combos if there was 40 (yes, forty) different numbers that would have to be entered to open the lock. We all know that most, and in the subject of this particular post, that there are 3 different numbers needed to open the lock. SIMPLE math would get you as Chucklz so kindly pointed out would be 40 to the third (40^3) (40*40*40) which is 64,000.

The reason the Mater Company says differently is due to tollerences of aproximently 1-2. This means that there are not exactly 40 possible numbers, but much less because if your dialing your combo, you could enter the number "3" instead of say "5" which the actual combo calls for. Assuming there was a tolerance of 2, in this particualar example, and number between 3 and 7 would work for the number "5" in the combo.

Also, the number of combo's is further reduced by the restriction of the last number in the combination sequence. There is a certain amount of the dial that is not used in the last number due to how the tumblers operate inside the lock. I unfortunetly do not rember this part of the guide "Safecracking for the computer scientist" Which I would reccomend you google for more information about combination locks.

If anyone would like to elaborate on anything or if I have anything wrong, please correct me. And I apologize if what I said doesn't make sense or is inaccurate.

Cheers,

Tristan

by **Chucklz** » 27 Mar 2006 20:35

Its not 40! combinations.

Imagine a lock with the combination 0-0-x. There are 40 divisions on the dial, so you can have 0-0-0 through 0-0-40. Thats 40 possible last numbers (39 really, as 40 is 0). So there are 40 possibilities in each position. Multiply.

Even though the dial has 40 divisions, the actual tolerances give 12 divisions. The same multiplication gives 1728 possible combinations. Culling undesireable combinations, and rounding to a nice number for the website gives 1500.

Concerning your factorial math.... Current estimates put the total number of particles in the universe on the order of 10e77. Yet you want there to be 8e47 combinations for a lock?

by **pyropnoy4life** » 27 Mar 2006 20:40

ok ok ok sorry its been a long day and i get my mat messed up sumtimes
again my most sincere of apologies. i will never again doubt the words of a moderator

How can I pick a 3 number combination lock?

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