Lutioush wrote:I've got a pro series 6121 and i'm wondering if anyone has any advice. I've been working at it for around 2 hours and this is one of my first picks. Its got two arches on the lock that prevent me from turning the wrench. Any ideas?
Yes, go to your nearest wal-mart if you are in the United States (hard to tell since you have not filled out your profile

hint-hint) and pick up a kwikset deadbolt. The keyed both sides model is the best value as it is only a few dollars more than a normal keyed one side/thumbturn model and will offer you two different cylinders to pick. I recommend you search here for a guide to disassemble that lock and repin it to just one or two chambers and practice. Work your way up to 5 pins and then try the other cylinder

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You will need a little practice before you tackle that pro series. The standard master cylinders that come equipped in those locks are not bad for an experienced picker but can be a nightmare for a beginner. If you need any help, first search the forums. If you can't find an answer then post your questions

. Welcome aboard!!
For the best book out there on high security locks and their operation, take a look at amazon.com for High-Security Mechanical Locks An Encyclopedic Reference. Written by our very own site member Greyman! A true 5 Star read!!