Maybe it's been too long since I've poked at brand new locks, but some of these have interesting mechanisms.
I thought I broke the Brinks lock. I couldn't get the core to turn back. Turns out this is dependent on the position of the shackle. You can lock it fully open or closed. But the core will not turn any other way.
The aluminum body Master also has a weird core and shackle relationship. I couldn't figure it out, but it's not like the Brinks. I did finally manage to get it locked back up though.
I'm not sure how these complicated mechanisms contribute to security. They were all 4 pin locks. And I'm not even sure if the Brinks actually had security pins. I'll need to spend more time on it. I might make it my new fidget lock.
Maybe 1 of these would give a novice trouble. Master didn't even put a rating on it. And I suspect the only reason it gave me any resistance is the packaging was such that I picked it off of the packaging rather than cut it out, so it was awkward to hold.
If you're looking for good inexpensive locks to practice picking on as a novice, these are fine. If you want a lock that will resist physical attacks maybe 2 of these would be fine (the 2 laminated locks with boron shackles). If you have something really expensive you want to protect, consider spending more on a lock.
Now to shove the keys and most of these locks into my locks bin.
#Lockpicking