Comments on: How to crack a Master lock

By: loki

loki — Tue, 06 Sep 2011 02:58:11 +0000

Theres no point in cracking the combonation on these locks. As shown by the diagram image, the latch mechanism is held in place by spring tention, making them vulnerable to bumping. All you have to do is give a good tap the U-bolt wile lightly pulling it.

By: Jeremiah

Jeremiah — Sun, 28 Aug 2011 20:46:40 +0000

Sorry to double post, but I didn’t see an edit button. I just wanted to say that after reading the post saying to add 2 to the first number in the second line that the combo 0-2-8 did work for me. Sorry about that. I don’t know that I will come up with a last digit of 8 using this method though, I still haven’t tried. I guess I’ll do that now.

By: Jeremiah

Jeremiah — Sun, 28 Aug 2011 20:38:40 +0000

I know this thread is old, but I just thought I would post that I have found at least one lock this won’t work with. The code is 38-2-8. If you look at the graphic you will see that there is no way to get that combo if I get the last number of 8.

By: Jake

Jake — Thu, 02 Jun 2011 19:28:08 +0000

@ MrSomeone That worked perfectly. Thanks so much.

By: Tomas

Tomas — Mon, 30 May 2011 21:15:36 +0000

For some reason it’s not working for me.
i did everything by what it says on this and that youtube that has over 1million hits. [(1)] (4) 7.5 10.5 (14) 17.5 20.5 (24) 27.5 30.5 (34) 37.5
3 7 11 15 19 23 27 31 35 39
did all the 100 combinations, but nothing.

By: NatureTM

NatureTM — Thu, 26 May 2011 23:04:11 +0000

I made an Android app that uses this process, but saves the user from having to write down and mess with the numbers. You just tell it where the dial gets stuck. It’s called Lock Hero and it’s in the Android market. It’s not open source and costs $1.99, so sorry about that, but it’s rough being a college student!

By: Brandi

Brandi — Tue, 10 May 2011 00:38:55 +0000

One thing I would like to point out is that the cheap Masterlock combination lock- what you most likely used in high school- comes off if you hit it just right in the right place. I’m in the army and when I was in AIT going through training at Ft Lee, we used to do that all the time to each others lockers just to screw with each other. I would just grab a combat boot and hit the top of the lock with the heel of the boot and it would just pop open and it never damaged the lock or affected the combination and it would shut like nothing happened. We never took anything, we actually left things- like a messed up note or a pack of cigarettes (smoking isn’t permitted and getting caught with a pack would loose all privileges- stuck in the barracks- and often meant extra duty like pulling guard overnight or cleaning the toilets, etc.) so imagine having a drill sergeant doing a locker check and you aren’t phased because you think you’re good and you go to open your locker and there’s a pack in plain site as soon as you open it. Best prank EVER! I switched to a key lock after my roomie left a note in my locker and then showed me how she did it. So the chick that kept ticking me off had to get revenge elsewhere. ;D

By: Matt

Matt — Mon, 25 Oct 2010 06:32:51 +0000

Ya but newer masterlocks are shim proof

By: alsin

alsin — Mon, 11 Oct 2010 00:28:16 +0000

argggggggggg cant do it too hard!!!!

By: Jim

Jim — Fri, 03 Sep 2010 20:08:15 +0000

Okay, So I went through steps one and two and got 38 for my last number. I’m a little confused because I vaguely remember the combination having an 11 in it which doesn’t seem possible according to this chart. Am I crazy?

Also, I tried the beer shimmy and succeeded only in lodging a piece of aluminum in the lock.

I’m currently going through the combination list, but something tells me that I’m going to have to use the bolt cutters for this one.

By: kimberly

kimberly — Sun, 29 Aug 2010 03:40:52 +0000

gthank you so muck for the steps and numbers the try on the combo. i would have never found my number because many site say to remove any numbers +\- 2 from your third number

By: Min

Min — Sun, 25 Apr 2010 00:38:41 +0000

Does anyone know if it makes a difference if the master lock was school issued with a key hole in the back?
I tried it on my lock from high school and it won’t work but I cracked my husbands old lock with that method.

By: KI1313EY

KI1313EY — Tue, 19 Jan 2010 04:11:01 +0000

@Mr.Someone

I tried that with a lock i know the combination to, and it didnt come up

By: rf

rf — Sun, 15 Nov 2009 23:43:23 +0000

Kohr – I think you missed the point of the photo decodes/replication. Yes analyzing a key when you actually have it is done considerably faster by other methods. The photo replication is designed for hands-off, meaning you can just take a picture of a key from a distance, and come up with a working replica. Rather hard to do that with a micrometer.

By: Robot Woods

Robot Woods — Sun, 25 Oct 2009 02:10:35 +0000

There’s also a new iPhone App to crack Master Lock combinations: LockGenie, available at http://itunes.com/apps/lockgenie