6 pin ultimate challenge practice lock - lock picking
6 pin Ultimate Challenge Practice Lock - lock pickingspool pins - security pin upgrade assortmentUltimate Challenge Comparison Chart

6 Pin Ultimate Challenge Practice Lock

4.48 out of 5
(48 customer reviews)


The 6 pin version of our lock picking practice locks.  Pin stack retainer screws make it easy re-key this lock cylinder to thousands of different key combinations for thousands of different lock picking challenges. An assortment of extra bottom pins, top pins, master pins, spool pins, and springs is included.

SKU: 6-Pin-UCL. Category: . Brands: .

Product Description

The 6 pin version of our lock picking practice locks.  Pin stack retainer screws make it easy re-key this lock cylinder to thousands of different key combinations for thousands of different lock picking challenges. An assortment of extra bottom pins, top pins, master pins, and springs is included.  Also included is a 5 pin demonstration key with it’s own pins to let the beginner demonstrate a lock’s normal operation before re-pinning the  lock for lock picking.

This 6 pin Challenge version of our practice lock also includes an assortment of spool pins so you can learn to overcome pick resistant cylinders.  Special security pins are becoming more common every year.  A decade ago, security pins were rare.  Today, even some of the cheapest hardware store brands include security pins to make them pick resistant. The most common type of security pin is the spool pin.  Most locksmiths never develop the skills to consistently open these locks. With practice, you can learn to consistently open even pick resistant locks.

The key way is a Sargent L-series. This key way is more open than our 7 pin lock making it easier for the beginner.

Learn to recognize the feeling of a “false set” when a spool pin binds the cylinder and how to reduce tension and rotate the lock back toward the locked position to release the trapped spool pin.

The Ultimate Practice Lock Products were invented right here and were the original products offered by LearnLockPicking.com.  Today, thousands of our practice locks have been used to master the skill of lock picking in over 40 countries.

  • 6 pin practice lock with easy to re-key pin stack retaining screws
  • wrench for removing retaining screws
  • replacement screws
  • an assortment of more than 100 lock pins including top pins, bottom pins, and master pins
  • replacement springs in a variety of lengths
  • spool type high security top pins
  • instructions

Ultimate Challenge Comparison Chart

48 reviews for 6 Pin Ultimate Challenge Practice Lock

  1. 5 out of 5

    (verified owner):

    What an excellent product. The only problem I have while using it is that a spring can sometimes get caught within the shear-line. I have ruined one spring that way, but the deal came with extra parts so no disappointment, just a lesson learned. You can tell if this happens by suddenly experiencing a resistance while rotating the core after it has been unlocked. I now occasionally take the parts out and inspect the springs. Customer service was/is excellent. Five stars. (:

  2. 1 out of 5

    (verified owner):

    I’ve been practicing locksport for a while now and can open high quality brands such as ABUS, Yale, Lockwood, etc easily.
    I bought this only for standard pin practice since it’s hard to find 6-pin locks with standard driver pins over here.
    This does not work well… at all.
    Without any tension, pins feel like they are binding and produce a click when lifted.
    Extremely disappointed.
    And that’s on top of the VERY long wait for it to arrive.

  3. 5 out of 5

    (verified owner):

    Excellent lock. I was torn between getting this 6-pin or the 7-pin to “do it all” and getting something “to grow into”. After using this 6-pin, I’m very pleased I went with this. The 7-pin option would have surely been overly challenging for my skill level. This option has a nice and wide keyway and the tolerances are still very tight; providing plenty of challenge!

  4. 5 out of 5

    (verified owner):

    Awesome Kit for noobs like myself, super fast postage to Australia aswell! Highly recommended sellers.

  5. 1 out of 5


    Just received an email asking me to review this product. I would do that if I had received it! Ordered on May 17th 2021 and today is June 3rd 2021. The tracking shows it left NJ on the 18th and went to PA, then to a distribution centre in Puerto Rico, then to another distribution centre in PR, then to Ocala FL, then to Miami, left Miami and arrived back in Miami, then went to Fort Lauderdale. Doesn’t seem like the most direct route from New Jersey to Ontario Canada. As of yesterday, June 2nd it was still in Florida. My credit card bill is coming due for this item that I still don’t have. I’ll have to contact my credit card company and dispute the charge. Warning to my fellow Canadians, don’t order from this company. They are unresponsive and unreliable.

    • :

      Hi Gordon:
      Sorry your package was delayed. We don’t have control over what happens to a package after it leaves our location. USPS service is a bit unpredictable now. I’m sorry your package was one of those that was mis-routed. Sounds like your complaints are with USPS and not with us. As to the claim that we’re unresponsive – you emailed us today, for the first time, at 12:36 and received a reply at 1:30.

  6. 5 out of 5

    (verified owner):

    Its exactly what i expected but at the same time showed me just how bad my home lock is. I was looking for more of a challenge and this lock delivered.if you want to start into lock sport and want something harder than like your front door here it is.

  7. 5 out of 5

    (verified owner):

    Good stuff! A great way to start.

  8. 5 out of 5

    (verified owner):

    Absolutely pleased with this product. I know you can DIY make something similar, but if you’re like me you haven’t got any spare lock parts hanging around. For me to go purchase everything to make this would cost me more than this kit cost, and I still wouldn’t have as much as they provided.

    I’ve been an on-and-off lockpicking hobbyist for over a decade. I’m decent at picking locks with a half-diamond rake, but I really want to hone my craft with single pin picking. This definitely does that.

    I started with two pins, and have been steadily working with just those two pins to really feel when the pins are set, and to able to pick just those two pins with proficiency. I’m sure I could just rake through the keyway a few times and have quick success, but that doesn’t compare to really understanding what’s going on with each individual pin.

    I’ve only just added a third pin, and getting a feel for that.

    This kit will provide me with countless hours of practice, because it doesn’t just come with the 6 pin sets it needs to be properly keyed and functioning, it comes with a stuffed full bag of all different types and sizes of pins. Security pins included.

    It’s something an absolute greenhorn novice can start with, just as well as a seasoned veteran can practice and maintain skills with. If you want something to practice, no matter what your skill level, this is an incredible kit.

  9. 5 out of 5

    (verified owner):

    I have the 7 pin Schlage practice lock. I have enjoyed it so much I thought I would add the Sargent 6 pin to the collection. I don’t think one can have enough practice locks. The pins,springs etc. that come with these locks is a fantastic bonus. Incredible priority postal speed. Two very big thumbs up.

  10. 5 out of 5

    (verified owner):

    Great product, good quality, …. been needing this the whole time. Practice makes perfect. Good job.

  11. 5 out of 5

    (verified owner):

    This thing is great! I’ve been messing around with the hobby for a year or so now. Getting frustrated and not really knowing what I’m doing. This allows me to pin it exactly how I want, so I can slowly increase the difficulty level. I’ve only had it for a few days now and already confident on 5 pins and starting to play around with spools! Combine this with Bosnian Bills youtube channel and you’re on to a winner!

  12. 5 out of 5

    (verified owner):

    I am very pleased with the lock i have bought.
    I am very pleased with the whole acquisition process.
    Keep up the good work guys!

  13. 5 out of 5

    (verified owner):

    Excellent product. Top quality, ease of use and a wide variety of combinations. Has really helped me take my understanding and skills to the next level. Highly recommend this one for anyone just starting out. And just 9 days delivery from the US to Australia. Very impressive.

  14. 3 out of 5

    (verified owner):

    I’m having fun with this product. My only concern is what I perceive as inconsistent spring tensions and crimping of them. I notice this in two ways: 1) When I first set it up, picking seems easy for a couple of days, then it becomes more difficult without any changes made. When I decided to reconfigure with a different keying, I noticed that some springs appeared crimped when I stripped it down for new keying. 2) I wondered if that caused the difference in how it picked, so I put in new springs from the extra set of pins and springs. It worked fine for a couple of more days and the difficulty again got worse without any further changes. I have put it aside for now and am proceeding with padlocks and a few others. I am new to this but have watched many videos. I just don’t feel this lock with available springs is a consistent circumstance.

  15. 5 out of 5

    (verified owner):

    Super high quality lock! Put in as many pins as you like from 1 to 6. Comes with tons of replacement pins, driver pins, spool security pins, springs, and top screws. LearnLockPicking has thought of everything. Very happy with my purchase. I would definitely recommend this lock to anyone who is interested in lock sport. Great for beginners like me. As I get better at picking it can be made more and more challenging.

  16. 5 out of 5


    People who give this thing one stars. The key pins will never change. The 6 you get is the 6 you get. Only rearranging the driver pins will it give you the added difficulty.

    If you want to pin this for just 2. Remove KEY pins 4-6. Keep 1-2 in. And after gutting it. Try the key at each stage before assembling it.

    1) add the key pins #1&2.
    2) stick key in. And make sure they reach the shear line.
    3)put plug in cylinder. Make sure it turns with key again.
    4) now add desired DRIVER pins and springs.
    5)cap off with set screws
    6)make sure key still turns.

    Bam. You now assembled a 2 pin key.

  17. 4 out of 5


    Love this practice lock. I’m up to 4 pins (standard, spool, spool, spool) with different spring tensions, and have it pinned so the key works. The most challenging 4 pined lock I’ve every done. But I’m a little annoyed they sent me a 5 pin key with my 6-pin practice lock. I’ll worry about this when I can handle more than 5 pins. :)

  18. 5 out of 5


    Very nice, high-quality lock, exactly as depicted. Easy to re-pin. Nice selection of pins to carry you from novice to expert level.

  19. 1 out of 5

    (verified owner):

    I love the idea here but a lot of us are beginners and we need more help on how to pin stack correctly, if you don’t do that correctly and know what sizes to put together far as key pins and driver pins the lock won’t open and you with think it’s your skill level but actually you have wrong sizes in pin stacks. Please fix this issue buy color coding driver and key pins that are stackable together!

  20. 4 out of 5

    (verified owner):

    I wanted the 6-pin challenge – and I GOT it! No easy pickin’s here. But the availability of being able to quickly reconfigure and practice with different feels is very much more valuable than having a dozen different locks that I’ve picked hundreds of times each lying around. Practice, practice, practice. Well done!!

  21. 5 out of 5

    (verified owner):

    Brand new to locksport. This is a great practice set with so many options and can scale with you as your skills advance. Good price, good quality, super happy.

  22. 5 out of 5

    (verified owner):

    The lock was delivered within a week and is exactly as described. I am new to this sport and was getting proficient at cheap padlocks like Master locks so thought this would be easy. That isn’t the case for me. This has given me hours of practice at a variety of configurations. Usually I can rake it easy enough but SPP is much harder with this lock. Still haven’t advanced to the spool pins that are included but with practice feel I can achieve those eventually. I would recommend this to anyone trying to learn lock picking.

  23. 3 out of 5

    (verified owner):

    I found most of the key pin/driver pin combinations are so short in the one I got that pinning combinations are limited (because the key pin and driver pin combined don’t stick out of the Bible) or have to be master key pinned which adds multiple sheer lines making the lock super easy. I personally would not purchase again.

  24. 5 out of 5

    (verified owner):

    I’m glad I found this lock. I recently took up lock picking as a hobby and soon realized that I was going to be buying a lot of locks. When I bought this lock, I knew it would save me a lot of money. I received an large number of different pins and springs with it. I can change the pin configuration a thousand different ways. This lock will save you some bucks and is a great aid for learning.

  25. 5 out of 5

    (verified owner):

    Before I knew that this existed, I was spending a good amount of money purchasing padlocks from Wal-Mart, then returning them once I had picked my way through them all, as an attempt to teach myself how to lock pick. The very same day I found out about this product, I purchased it and waited ever so anxiously for its arrival. What I found out when it arrived is that, all that time spent picking those “borrowed” padlocks effectively taught me nothing. Sure, I was picking said padlocks, but I had no idea if any of them contained trick pins, and that type of information is the difference between mastery of this art and forever remaining a novice. With this kit, I was finally able to expand my knowledge, having the ability to gut the lock after conquering it, and see exactly what I was up against. I’ve learned everything I know about spools and serrated pins from this product alone, starting with one trick pin in the chamber, then adding a second, and so on. I could not recommend a better, more cost effective tool for teaching the beginning lock picker, or advancing the moderates among us.
    I have just one bit of advice for those trying to decide between the 6-pin and 7-pin locks: Don’t do as I did and ignore everyone leaving comments about the difficulty level of the 7-pin Ultimate. 6-pin is the way to go, unless you have some SERIOUS experience picking locks. The 7-pin is great (I ordered it first, and I still have it, so that someday I will hopefully have the skill to challenge myself on an even grander scale), but the size of the keyhole is so slim that the growing lock picker doesn’t stand a chance, and thus can’t progress. So don’t make the same mistake I did: start with the 6-pin Ultimate, and you will begin your strides towards mastery! 6 stars out of 5!

  26. 1 out of 5

    (verified owner):

    I really wanted to love this product, but I can’t get it to work properly. I am able to pick 6 pin standard deadbolts all day long, but I can’t even rake this lock open with 2 or 3 pins, let alone SPP. It has something to due with the different pins heights as the pins are not binding or setting properly. I have played with every color of pin length, different springs, etc., but I have still not been able to arrage a simple 2 pinset that will function properly.

    As a product designed for a beginner that has presumably never keyed a lock before I find it a huge drawback that the pins are not color coordinated in a way so that it prevents making your pin stacks too short or too large. The company knows this is a problem as they warn against it in their little instruction sheet. It’s ridiculous that I have spent this much time just trying to get the pins to work in an order so the lock will function and I can practice. I work in construction and rekey locks all the time so why is this one function so badly? I should have just bought a $25 Masterlock 911 and repinned it with whatever I wanted. It would have saved me a lot of money, time, and frustration. Extrememly dissapointed in this product and do not recommend.

  27. 5 out of 5

    (verified owner):

    Great learnpicking lock. After some time i Got it to Denmark… Iam very happy with this training lock Bought the 6 pinner its great…,, thats great stuff. For sure “!!!!!

  28. 5 out of 5

    (verified owner):

    Newbie here. This is great when you first start because it allows you adjust the difficulty level just right. My wife and I are learning this together and we are both enjoying it.

  29. 5 out of 5

    (verified owner):

    Not an easy lock. I have been picking briefly, but have mastered easily the clear lock, the master and abus locks of the world, and am having difficulties with this one. Which is what is supposed to happen.

    If you can already lock pick well, this is not for you. Get the 7 pin, which is just evil. But the 6 is a superbly made and designed device, and it is going to continue to teach me how to pick locks.

  30. 5 out of 5

    (verified owner):

    The product is exactly as described.High quality and works perfectly for the purpose it is intended. Being in Australia I was also surprised at how quickly it arrived.I would recommend this training lock to anyone. Cheers.

  31. 5 out of 5

    (verified owner):

    Very nice product! This is actually my second LearnLockPicking training lock. I bought the 7-pinner first, and love it, but wanted to try a different keyway, since most of my locks have the Schlage. As it turns out, the bitting on this one (for the key that came with it and standard drivers…natually you can change it) is more challenging than my 7-pinner! Love it!

  32. 5 out of 5

    (verified owner):

    This is a great product! It is really helping me learn! Highly recommend for people new to the sport!

  33. 5 out of 5

    (verified owner):

    Love it. Solid quality, super easy to re-pin. Fast delivery.

  34. 3 out of 5

    (verified owner):

    Bought this item recently. Great way to learn how to pick locks. Unfortunately the finish was fairly poor, the face’s coating had chipped away in places prior to arrival and there are also a couple of minor cuts in the brass. Overall I’m a bit disappointed with the finish but it does what it says it does so thats cool i guess.

  35. 5 out of 5

    (verified owner):

    Great lock with tons of extra pins and springs to practice with.

  36. 5 out of 5

    (verified owner):

    A fantastic bit o kit can highly recommend this for beginners and masters alike. Just as described and advertised by BosnianBill. Delighted with it and will be a great learning and practice tool for many years to come. Service was excellent too, terrific guys I just wish you had a UK outlet you would get real good business here. Cheers

  37. 5 out of 5

    (verified owner):

    It was as described.I’m so glad I found this site they’re products are of very high quality. I would highly recommend this product

  38. 5 out of 5

    (verified owner):

    This is a great product. It has made easy to transition to picking multiple pins. You receive a great many pins to build up numerous combinations. It is a great kit.

  39. 5 out of 5

    (verified owner):

    I discovered these via Bosnian Bill’s website & youtube channel and bought two. (One for a friend so we can set each other little challenges and swap locks every once in a while.) I’m very happy with mine. I’m pretty good at picking all five pins of the “default” setting that came with keys and have just started to try other random combinations of pins. Fun!

  40. 4 out of 5

    (verified owner):

    Excellent lock for training great job guys.my only gripe would be that I got more wafers than driver pins by a ratio of 2/1.but nevertheless would definitely recommend this

  41. 5 out of 5

    (verified owner):

    Not disappointed. This lock is exactly what I hoped it would be. I also ordered the “security pin upgrade.” Along with all the pins it came with, this should keep me busy for a long time to come.

  42. 5 out of 5

    (verified owner):

    Really impressed. Very nice quality. Good precise feel on all components. Nice packaging and the shipping was fast. Definitely recommend.

  43. 5 out of 5

    (verified owner):

    My 6 Pin Ultimate Challenge Practice lock arrived this week (prompt delivery thanks). It’s a fantastic quality product. It’s like the Lego kit of practice locks. I love the way I can configure it in so many different ways with different levels of difficulty.

    Well worth the money. Highly recommended!

    New Zealand

  44. 5 out of 5

    (verified owner):

    Exactly as described, loads of spare pieces for future fun. I can’t think of a better way to learn this art. I can rake many locks now but am stuck still trying to single pick just 3 pins on this lock. Maybe someday I’ll get to five?

  45. 5 out of 5

    (verified owner):

    Very impressed, great way to learn. As a novice I was able to start slow and get a feel for manipulating the pins. Now I spend most of my free time trying to stump self with unusual and difficult pin stack combinations. Couldn’t be happier with the product and the service provided.

  46. 5 out of 5

    (verified owner):

    This is an amazing product…..period. Fast shipping and customer service.

  47. 5 out of 5

    (verified owner):

    Lots of fun. High quality lock, many pins to beat. Wide learn possibilities – from easy to master skills. Short delivery time (7 days to Europe).

  48. 5 out of 5


    Great lock! One lock that can be easily re pinned with a GREAT selection of pins. Could not be happier!

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