Problem Picking Mastered Shlage

by **Lucifer1** » 26 Nov 2006 19:56

I cant seem to be able to pick a Shlage Deadbolt that has been mastered. Is it harder because there is more then one shear lines? I've picked many others but for some reason this one has given me problems.

by **melvin2001** » 26 Nov 2006 19:58

no, master keyed locks are generally considered less secure, unless of course you are referring to an SFIC.

all things being equal, 2 locks of the same brand and model, the one without master keying SHOULD be harder to pick.

by **Schuyler** » 26 Nov 2006 20:05

Yeah, if it's SFIC: lock looks like an 8

Then you're going to have problems. Because it does have multiple shearlines, but you can't mix and match. Though, if it were mastered it should still increase your odds.

by **Lucifer1** » 26 Nov 2006 20:11

I wont let it win, if it comes to it I will smash the thing.

by **melvin2001** » 26 Nov 2006 20:12

lol thats the spirit! your not American by any chance are you...

by **Lucifer1** » 26 Nov 2006 20:50

by **BazookaMedic** » 26 Nov 2006 20:52

Be sure not to use the rotary pick.

by **bumpit** » 26 Nov 2006 23:54

The Lance pick works fairly well too.

by **2octops** » 28 Nov 2006 2:25

If it's a Schlage, it might be a Large format interchangeable core, but is definately NOT a small format.

Schlage does not make SFIC.

Even if it is Schlage LFIC, then that would not be any reason it would be harder to pick because of the disign Schlage uses.

Masterkeying just has multiple shear lines, so it should be easier. However, Schlage does make good lock cylinders with low tolerance so you have to be pretty dead on the shear line to get it to turn if the cylinder is not worn.

by **melvin2001** » 28 Nov 2006 2:28

http://professional.schlage.com/product ... s_SFIC.asp

:shock:

by **faquecharlie** » 23 Sep 2008 7:05

The reason master keyed locks ARE so easy to pick is BECAUSE of all those shear lines. Six pin Schlage, high- low pinning, (ride on that MACS line), lets say the bitting is 071829. Thats pretty high-low. Once you start adding the top pins, (TP), or master wafers, the sheer lines just start adding up. 1 TP in the entire lock is two shear lines. You've just doubled your chances of defeating that lock. Lets say its in a GRAND MASTER system. Lets say that there is 1 TP in each chamber. The amount of shear lines are 64! (2x2x2x2x2x2)=64 That door couldn't STAY locked. Thats why I will never ever recommend this for ANY exterior door. It makes me cringe when I do apartment/condo complexes.

I don't think that it was mentioned if there was even a key or not.

If NOT then I suspect a TP is worn a tad and is wedged itself between the plug and the cylinder. Believe it or not, there are some SMITHS out there who will still use a TP smaller than .30!

On the other hand.....if he DOES, in fact, have a key, he's not supposed to be working on his own crap right????

lol

by **Mutzy** » 23 Sep 2008 7:18

Alternatively, we could look at the post dates.

by **Trip Doctor** » 23 Sep 2008 18:24

by **jpb06080** » 23 Sep 2008 20:56

The reason master keyed locks ARE so easy to pick is BECAUSE of all those shear lines. Six pin Schlage, high- low pinning, (ride on that MACS line), lets say the bitting is 071829. Thats pretty high-low. Once you start adding the top pins, (TP), or master wafers, the sheer lines just start adding up. 1 TP in the entire lock is two shear lines. You've just doubled your chances of defeating that lock. Lets say its in a GRAND MASTER system. Lets say that there is 1 TP in each chamber. The amount of shear lines are 64! (2x2x2x2x2x2)=64 That door couldn't STAY locked. Thats why I will never ever recommend this for ANY exterior door. It makes me cringe when I do apartment/condo complexes.

I don't think that it was mentioned if there was even a key or not.

If NOT then I suspect a TP is worn a tad and is wedged itself between the plug and the cylinder. Believe it or not, there are some SMITHS out there who will still use a TP smaller than .30!

On the other hand.....if he DOES, in fact, have a key, he's not supposed to be working on his own crap right????

lol

I don't really think that master keying is the security threat people make it out to be. While there are some serious flaws inherent in master systems, imagine if a maintanence worker had to carry a seperate key for every unit in a complex of over 200? Master keys are a necessary evil.

Also, I'll go as low as a .20 master pin any day. If you've ever had to do alot of keying for a landlord or maintanence department with an old master system, you know that wear on the key will necessitate the use of smaller wafers to make the lock compatible with an existing change key.

by **straightpick** » 23 Sep 2008 22:22

I agree with jpb06080. A properly designed master key system entails little risk. Note the word "properly "designed. There are many different formats of masterkeying, two step increment, rotating constant, matrix, etc. Each has their own advantages and disadvantages. While a six pin cylinder with a MP in each chamber will yield 64 possible keys (or shear lines), that is an example of an improperly designed master key system, unless you needed thousands of change keys. There is a lot more to masterkeying than meets the eye, a subject for the advanced forums.

Problem Picking Mastered Shlage

Problem Picking Mastered Shlage

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