Josh-the-Locksmith
25 Years Experience
Austin, TX
Male, 46
I've been a locksmith since 1998. I did automotive residential & commercial work from 1998 to 2008. From 2008 to 2018, I did some residential, but mostly commercial work. I have been project managing & estimating since 2018. I used to locksmith in the Chicago area, now the Austin area.
Usually those door knobs are screwed onto the spindle. Once you take out the setscrew on the edge of the knob, you should just be able to unscrew the whole door knob. The square shaft that goes through the door is actually threaded like a giant screw.
“Do not duplicate” is nothing more than an honor system. It’s can be a normal every day house key with the words “do not duplicate” stamped on it. Some go as far as to have different key heads, or “bows”. At that point it’s up to the person working at the store on whether they want to duplicate the key or not. True key control is done through a patented key system such as Medeco M3, Schlage Primus, or Mul-T-Lock. Some require special machines to cut the keys, some don’t.
You could try putting it into the lock position, push the detent, and then put it into the unlock position and try the detent. That might do it. If it’s still not coming off, you may have to punch it with a flat head screwdriver and hammer. It’s quite possible it could break it, but it’s probably broken already. I highly recommend sticking with a name brand lock like Kwikset, Schlage, Dexter, Master, etc.
Hey Adam. Any automotive locksmith should be able to help you. They should be able to pick it open and make a key to it. Worst case, they get it unlocked and you order a new one from the dealer/manufacturer.
1 thing I would recommend trying first is it’s possible there is pressure on the lock itself, which can prevent the key from turning. Push in on the panel with 1 hand while you turn the key with the other hand. Letting that pressure off might do the trick. If that doesn’t work, it’s possible they either sent you the wrong keys or installed the wrong lock.
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Just to get the obvious out of the way, insert a flat head screwdriver into the tailpiece hole and turn it. Try to open your door and shake it as you do it just in case it might be pinched. If that doesn’t work, it could be a broken bolt. You will need to basically rip the latch bolt apart from the inside. Eventually you will remove the blockage and the bolt will pull back. Sometimes it can take a while.
Not sure what you mean by the “inside depth“. Feel free to text me if you’d like further help. (737) 757-0004
Pry it open with some big pry bars, throw it in the trash & buy a better safe. They are not worth much more than that unfortunately. They’re plastic, pop metal, & sheet metal. The cost to have a locksmith professionally open it with expensive tools, & try to repair it would cost you more than buying a brand new safe.
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