Type of key? And how to get broken part out of lock?
1. Type of key?
The brand is Phillips but they make various types. The type here is (not sure of the correct jargon) without vertical ridges and notches. And both sides of the key are identical.
I've looked at some diagrams of key types and I'm not sure exactly. Is it a "dimple key"? Something else?
2. How to remove broken part from lock?
Location: Door between bedroom and garden.
Situation:
Someone bent the key a little, and it was stuck, couldn't get it out. On the inside of the door. At that point still able to lock and unlock from the inside only. Using other key from the outside does nothing, doesn't even turn.
I tried gently straightening it but it immediately snapped.
Now: can still open and close the door using the handle. Can still, with difficulty, lock and unlock the door (from inside only) by carefully pressing the head of the key against what is in the lock and turning.
A lot of info online for removing broken key blades from locks are for the "traditional" kind of key with vertical ridges and notches.
I have a screwdriver that fits all the screws and I can access all sides of the lock (inside, outside, edge), but I'm not sure if that's relevant. I've tried tweezers but it's too snug.
If I need more tools or equipment, I'll get them tomorrow.
Very small, precision needle-nose pliers work as well, but there needs to at least be a very small part of the key-break to grab. If the key somehow snaps in a position that's even slightly recessed, I've used a tootpick and tiny dab of superglue (not enough to spread and touch the lock itself - be careful lol).
OP’s description of trying to pull the key out when it broke, makes me think the key may also be bound/frozen in the lock. I don’t think you’re supposed to use wet lubricants in a lock, but they may need to use a penetrating lubricant (like wd-40) along with the dental pick.
Locksmith here. In a pinch, I've ground the back of a jigsaw blade down, leaving just the teeth on the blade (short enough to fit above the key). Jigsaw blades, especially those intended for metal, are hardened and will easily bite into just about any key, giving enough leverage to pull out the broken piece.
Any time I've had a key stuck like this I've used something sharp and just stabbed it down into the top of the key and leveraged it against the lock itself. Keys are way softer than people think.
I've had luck melting a hot glue stick and pressing it on the head, letting it cool, and pulling it out, but you would also be best replacing the lock since you can open the door
Some superglue on the broken part of the key and reattach it, or alternatively superglue a few paper clips or other thin metal objects to the key in the door. Using more than one will spread out the force used to pull.
This looks like a similar setup to some security doors I've messed with.
Edit: what about using a unfolded paperclip and push from the other side. The plan I had when I started writing this probably won't work as accessing the key cylinder will only likely get access the keyhole.
Edit2 id also hit it with a spray from a can of WD-40 (lubricant) and hope that helps work things loose.
Below is probably useless but it was my train if thought initially.
They have a removable part so the locks can be rekeyed easily by a locksmith by replacing some pins on the inside to match the keys.
Edit 3 if removing fails and you need to replace a part, you probably could get away with just replacing the locking part and not the whole handle mechanism.
In the ones Ive used a screw on the door matches up holding the locking cylinder component. Probably the one just above the deadbolt.
Try unscrewing this to see if the cylinder the key is stuck in can be removed.
Go very carefully as I don't know what is actually holding the stack of pins which match your key and if these pins fall out, finding which go where will be very hard and very fiddly.