Here’s an amusing little tidbit I learned last night:
Schlage deadbolts have this feature called an “Anti-pick Shield”. This has nothing to do with the pickability of the cylinder. Rather, the shield covers the part of the lock that’s in the door, to protect it from an icepick attack.
Today I did battle with the stubborn Master Lock. Aaron gave me an old sawblade yesterday to fashion into more tools, and today I decided it was time I stopped complaining about how I didn’t have a tensioner large enough for the stubborn Master Lock and just make one. Out came the Dremel again, along with a couple files and some sandpaper.
I opted for a flat tensioner that fits in the top of the keyway.
Only the very tip sits in the keyway. The notch is to hold the tensioner out far enough that it doesn’t touch the first pin.
Here it is in the lock. You can see where the notch rests on the outside:
If this tensioner were twice as thick it’d be perfect, but as it is it gets the job done better than the other tensioners that get shift and get wedged, although it does sometimes slip loose and launch itself.
I picked and picked and picked with this new tensioner. The lock would not open.
Finally, I took the lock apart to see what kind of pins it has. Unfortunately, the plug is held in place by a C-clip, which I have absolutely no interest in prying off and reattaching, because I don’t like to lose blood. Or C-clips.
Here is the infamous stubborn Master Lock, half disassembled:
See those 4 holes in the bottom of the cylinder? That’s what the pins slipped into the last time I opened this lock, causing me to think it was stuck. I just needed to work them back out of there to rotate the plug again.
Shortly after reassembly, I remembered that the cylinder is difficult to open even with the key. It often catches and refuses to turn unless you pull the plug out, but not too far, and at just the correct angle, with the key. This is not something I can do with a pick or tensioner.
What this means is even if I were to pick the pins properly, the lock still wouldn’t open. Perhaps that’s what’s been happening. I have no way of knowing.
Stubborn lock is frustrating.