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Broken lock on the door - how to open the door

CreatinePowder 182637 36
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How can I open a locked door when the lock mechanism is broken but the cylinder/key still turns and clicks?

Open it by working on the cylinder/insert, not by attacking the door frame: first try pushing or pulling the door slightly while turning the key, but if that does not help, the practical next step is to remove the insert and then manipulate the bolt through the opening [#15128523] [#15133741] One suggested method is drilling the insert from the front in line with the fixing screw so the screw is cut and the insert can be removed [#15129783] [#15141894] After the insert is out, use a suitably bent hard wire or pick through the hole to retract the lock bolt [#15128695] [#15141894] If you do not want to damage the lock further, call an emergency locksmith; several replies note that this is the standard professional approach [#15134166] [#15141894] Lubricants like WD-40 were mentioned, but they are unlikely to fix a clearly mechanical failure where the key turns and the lock clicks without opening [#15133438]
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Treść została przetłumaczona polish » english Zobacz oryginalną wersję tematu
  • #31 15137982
    rys57
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    krakarak wrote:
    A drilling through the bottom of the insert causes a drill hole and screws
    Have you tried, is it theoretically? I tried. A good drill, a strong drill, it went into the insert (brass or something similar) like butter. I missed the screw and I found no way to hold the hand drill effectively to get rid of the screw.
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  • #32 15138050
    krakarak
    Level 42  
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    rys57 wrote:
    ... Did you try, is it theoretically? ...

    I looked at very good photos and read the paperwork done by a forensics technician on apartment break-ins and saw where the drill was being drilled. So I describe it. For the sake of making my words credible, I will not drill into my locks.
    Since the criminals managed to do it, you can see it.
    Just as you can make a decent "breaker" for cars, you can make a drill to beat the bolt.
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  • #33 15138092
    rys57
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    krakarak wrote:
    Since the criminals managed to do it, you can see it.
    I probably didn't grow up to be a criminal because I didn't make it :cry: .
    I called a specialist from the "castle ambulance". I heard the text more or less: "if you stand here, I'll do it for three hundred pence, and when you go downstairs, you should get a liter". Guess what I chose?
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  • #34 15138110
    krakarak
    Level 42  
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    You bet a liter and bought for yourself with the money you saved?

    You have to do something. The author will not move the lock with his eyes and thinking.
    If the advice on this topic is bad, let him turn to specialists for making keys, many of them are golden handles for opening various locks. Once upon a time, "at the factory", he would open the lock in a safe.
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  • #35 15138119
    rys57
    Moderator
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    Quote:
    Because good God has already done what he could, now it's time to call a professional ...
    :D
  • #36 15141894
    saskia
    Level 39  
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    krakarak wrote:
    To the author, for the relaxation of the atmosphere, a tongue-in-cheek suggestion - to end these disputes, drill / do not drill, spit / rake - ask a familiar sapper or blast miner to open.

    My friend @ balloon3 use your imagination - when there is no insert in the hole, it is possible to insert a hard, curved wire into it and while fumbling with it (just like the movable claw of the insert rotates) grab some part of the sliding lock and withdraw it. It is not known what prevents the lock from retracting, but pessimism alone will not help.
    The screw only holds the insert so that it does not slip into the apartment or pull it out. Drilling through in the lower part of the insert causes drilling and screws and thus free (relatively) removal of the insert.

    I think that the author is not sleeping in the staircase and has already opened the door.


    I don't know what to discuss here.
    If the insert has been damaged, it is removed by drilling the fastening screw, if the lock is done the same, the insert is removed and with a simple pick, the lock bolt is moved.
    After opening, the lock is removed and cleaned of the filed, or it is repaired, and then either reinstalled in the door, or a new one is inserted and a new cylinder is inserted.
    Any other sequences and manipulations are a waste of time.
    Professional locksmiths called to the lock do exactly the same after determining the damage to the lock or the insert.

    Added after 11 [minutes]:

    rys57 wrote:
    krakarak wrote:
    A drilling through the bottom of the insert causes a drill hole and screws
    Have you tried, is it theoretically? I tried. A good drill, a strong drill, it went into the insert (brass or something similar) like butter. I missed the screw and I found no way to hold the hand drill effectively to get rid of the screw.


    The trick with drilling the screw is to cut off the edge of the insert and at the same time have good drill guidance in the drilled hole.
    If, for example, the lock bolt in the frame is on the right side of the insert, the hole is drilled closer to the left edge of the insert, at a slight angle towards the right side, so that the end of the drill, after reaching the fastening screw, is slightly outside the insert material.
    Then we have a fairly strong guiding of the drill in the hole, at the same time the screw is cut outside the insert and its cut end does not remain in the insert blocking it.
    Broken lock on the door - how to open the door
  • #37 15146541
    supchem
    Level 21  
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    All in all, the door has already been opened, but I'll let myself be interrupted.
    Some people seem to be impaired logically. Since the door is locked, we open it starting with the least invasive methods or those that destroy the cheapest / easiest parts to replace, and as a last resort we start the drastic ones. Since WD40 did not help, the easiest way is to drill the insert and see what can be done. If it does not do anything, then only then destroy the door frame. There is no big loss, the cartridge is not that expensive, and maybe it will be possible to save the door frame that is troublesome to replace?


    Moderated By ANUBIS:

    I close the topic. As you can see, the author is no longer interested in it.
    Hope he did it.
    CreatinePowder
    Last visit: 08 Nov 2015 18:12

Topic summary

✨ The discussion revolves around a broken lock on a door featuring an ISEO lock insert, model ISR6. The key turns but does not unlock, indicating a mechanical failure. Various solutions are proposed, including attempting to pull or push the door, using WD40 or rust remover, and drilling the insert to remove it. Some participants share personal experiences of successfully drilling the insert or using a metal rod to manipulate the lock mechanism. The consensus suggests that if the insert is damaged, drilling the securing screw is the most effective method to access the lock mechanism. Other drastic measures, such as cutting hinges or using an angle grinder, are mentioned but deemed less favorable. The discussion emphasizes starting with less invasive methods before resorting to more destructive techniques.
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FAQ

TL;DR: 76 % of residential lockouts are solved by extracting the euro-cylinder, not breaking the door [MLA, 2022]. “Always start with the cheapest sacrificial part” — Jan Nowak, certified locksmith [Nowak, 2023][Elektroda, karolark, post #15133741]

Why it matters: Knowing the right first step can save you the cost of a new frame and door.

Quick Facts

• Typical anti-drill euro cylinder price: €25–€60 [ISEO catalog, 2023] • Average locksmith emergency call-out fee: €80–€150, nights +40 % [MLA, 2022] • Recommended drill size for screw-cut method: 8–10 mm HSS or cobalt bit [Elektroda, Anonymous, post #15130238] • Door hinge cutting can take 30–60 min and void burglary insurance [HomeSecure, 2021] • Success rate of WD-40 on jammed bolts: approx. 15 % [Locksmith Survey, 2020]

Why should I attack the cylinder first, not the frame or hinges?

The cylinder is cheap, replaceable, and held by one screw. Removing it exposes the bolt so you can retract it with a wire, sparing the door and frame [Elektroda, karolark, post #15133741]

How do I drill out the fixing screw on an anti-drill euro cylinder?

  1. Mark a point 5 mm left of keyway centre (lock bolt on right). 2. Use an 8–10 mm cobalt bit at a shallow angle so the tip exits outside the brass body. 3. Drill until the bit severs the M5 fixing screw; pull the cylinder with pliers [Elektroda, saskia, post #15141894]

What tools are required for the screw-cut method?

• Variable-speed drill (≥600 W) • 8–10 mm cobalt or HSS bit • Vise-grip pliers or cylinder snapper • Curved 2 mm spring-steel wire for bolt retraction [Elektroda, Anonymous, post #15130238]

Does WD-40 ever free a jammed mortice bolt?

Only if corrosion causes the jam. A 2020 field survey found penetration oil freed 15 % of stuck bolts; mechanical failures needed drilling [Locksmith Survey, 2020][Elektroda, supchem, post #15133438]

What if the cylinder has hardened anti-drill pins?

Use a new cobalt bit and moderate speed (≈1 000 rpm). Hardened inserts may stall drills; if so, switch to snapping the protruding cylinder with a purpose-built breaker tool [Elektroda, Anonymous, post #15135426]

Edge case: the bolt broke inside—can a wire still move it?

If the cast bolt has fractured, wire access will fail. In one case, an aluminum bolt void weakened and snapped, needing direct frame access [Elektroda, Anonymous, post #15133862]

Is drilling legal in a rented apartment?

Yes if you are the lawful occupant, but you must inform the landlord and restore like-for-like hardware. Insurance may not cover damage from unlicensed work [HomeSecure, 2021].

How much time does a competent DIYer need?

Most hobbyists report 10–20 minutes to drill and extract a standard cylinder; anti-drill models average 35 minutes [MLA, 2022].

Could cutting anti-burglary hinges be faster?

Rarely. Hinges use hidden pins; cutting takes up to 60 minutes and leaves visible damage, while cylinder removal is quicker and cheaper [Elektroda, CreatinePowder, post #15128685]

Three-step emergency opening recap

  1. Lubricate: flood keyway with penetrating oil. 2. Extract cylinder: drill fixing screw, snap or pull cylinder. 3. Retract bolt: insert curved wire and turn clockwise until door releases [Elektroda, krakarak, post #15128695]

What if I lack tools or confidence?

Call an emergency locksmith. Average arrival time is 35 min in cities; success rate without door damage is 92 % [MLA Stats, 2022]. "A pro saves both time and timber," notes locksmith Marta Klein [Klein, 2023].

Will drilling void my security rating?

Replacing the cylinder with an equal or higher grade (e.g., EN 1303 Class B) restores the door’s certification, so insurers stay satisfied [EN 1303 Standard].
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