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How to Pick a Door Lock: A Complete Guide

Updated Dec 16, 2025 byĀ eufy team| min read
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Learning how to pick a door lock can be a valuable skill, whether you're dealing with a lost key or exploring the mechanics behind lock security. This comprehensive guide will walk you through everything you need to know about lock picking. We'll start with the basics of locks, delve into the different types of locks and the steps to pick them, and cover the various lock picks and their uses. With this knowledge, you'll be well-equipped to handle common lock situations and understand the intricacies of different locking mechanisms. Let's dive in and demystify the art of lock picking!

Learn the Basics of Locks

Understanding the basics of door locks is essential for anyone interested in lock picking. Most door locks consist of several key components: the keyway, the plug (core), pins or wafers, and springs. The keyway is where the key is inserted, and its shape affects the type of key and tools needed to pick the lock.

The plug is the part of the lock that turns when the correct key is inserted. In the most common type of lock, the plug contains key pins and driver pins that must align at the shear line to allow the plug to turn and unlock the door. Springs push the pins into their default positions, ensuring the lock stays secured when not engaged.

By understanding these components and their functions, you can better comprehend how different types of locks work and how to approach picking them.

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Types of Door Locks and How to Pick Them

types-of-locks

Understanding the different types of door locks can help you choose the right security solution for your needs. Here are the most common types of door locks and the methods on how to pick a lock on a door:

Lock Type

Applicable Scenarios

Core Features

Lock-Picking Methods

Deadbolt Locks

Exterior doors

High security; a solid metal bolt extends into the door frame via key/thumb turn, providing strong resistance against forced entry

1. Insert a tension wrench into the bottom of the keyhole and apply slight pressure in the key-turning direction.

2. Insert a pick into the keyhole and lift the pins one by one while maintaining tension.

3. The cylinder turns to unlock once all pins are set.

Knob Locks

Interior doors

Convenient for indoor use; key cylinder built into the knob; less secure than deadbolts as the mechanism is easier to bypass or break

Same as deadbolt locks: apply tension with a wrench + lift pins with a pick until the lock turns.

Lever Handle Locks

Interior doors; areas requiring accessibility

Easier to operate than knob locks, ideal for people with limited hand strength/dexterity; equipped with a lever handle and latch mechanism

1. Insert a tension wrench into the keyhole and apply pressure in the lever-turning direction.

2. Use a pick to lift the internal pins until the lever moves and unlocks the door.

Cam Locks

Cabinets, mailboxes, small enclosures

Simple to use and install; moderate security; unlocks by rotating a cam with a key

1. Insert a small flathead screwdriver or pick into the keyhole.

2. Gently rotate the cam mechanism until the lock unlocks.

Rim Locks

Older or decorative doors

Surface-mounted (not recessed); interior latch + exterior key cylinder; used as a secondary security measure

1. Use a tension wrench and pick: apply tension with the wrench + manipulate pins with the pick until the lock turns.

2. Alternative: use rim lock-specific bypass tools.

Mortise Locks

Commercial properties, older homes

Installed in a mortise cut into the door edge; durable and high-security; complex mechanism with deadbolt and latch

1. Insert a specialized tension wrench into the keyhole and apply slight pressure in the key-turning direction.

2. Use a pick to lift the internal pins carefully (due to the complex mechanism).

3. The lock turns to unlock once all pins are set.

Padlocks

Gates, sheds, storage units

Portable; keyed or combination-operated; not permanently attached; versatile

1. Traditional method: tension wrench + pick (same steps as deadbolts).

2. Alternative: slide a shim between the shackle and lock body to release the mechanism.

Cylinder Locks

Residential and commercial buildings

Easy to rekey or replace without changing the entire mechanism; available in euro/oval cylinder types

1. Insert a tension wrench into the keyhole bottom and apply pressure in the key-turning direction.

2. Insert a pick and lift pins one by one while maintaining tension.

3. The lock turns to unlock once all pins are set.

Interconnected Locks

Exterior doors (for emergency exit)

Combines deadbolt and latch; both can be operated simultaneously from the inside with one lever/knob turn; enables quick exit

1. Insert a tension wrench into the main keyhole and apply pressure in the key-turning direction.

2. Requires professional locksmith tools and advanced knowledge to manipulate multiple locking points due to its complexity.

Multi-point Locks

Patio doors, French doors, high-security exterior doors

Secures doors at 3–5 points along the frame with one key turn; highly resistant to forced entry

Highly complex; cannot be picked like single-point locks; professional locksmith tools and techniques are required.

Barrel Bolt Locks

Interior doors; additional security for exterior doors

Also called sliding bolt locks; a metal bar slides into a catch; used as a secondary lock

Cannot be picked traditionally (manually operated from the inside). If accessible, slide the bolt open with a thin tool through the door gap.

Chain Locks

Residential front doors

Secondary security; allows the door to open slightly while locked; enables checking visitors without full door opening

Cannot be picked traditionally. Bypass by maneuvering the chain off its track with a thin tool if there is enough space.

Smart Locks

Residential and commercial buildings; smart home systems

High-tech; supports Bluetooth/Wi-Fi/keypad/biometric (e.g., fingerprint) entry; remote access, monitoring, and home automation integration; high security + convenience

1. Check for a manual key override: use traditional picking methods on the key cylinder if available.

2. Electronic bypass: requires hacking the digital system or exploiting software vulnerabilities (not recommended without authorization).

3. Alternative: use physical bypass tools.

Important Notes:

  • Legal Disclaimer: Picking locks without permission is illegal and considered trespassing. These techniques are shared for educational purposes or for situations where you have legal access to the property, such as losing your keys.
  • Skill Level: Lock picking requires practice and skill. Some locks are easier to pick than others, and specialized tools might be necessary for certain types.
  • Professional Help: For complex locks like mortise or multi-point locks, or in situations where traditional picking methods do not work, it is best to contact a professional locksmith.

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Types of Lock Picks and Where to Use Them

Lock picking requires the right tools for different types of locks. Here’s a guide to the common types of lock picks and their specific uses:

  • Hook Picks:Ā Ideal for single pin picking, particularly in pin cylinder locks. They allow you to lift individual pins one at a time.
  • Rake Picks:Ā Suitable for beginners, rake picks can manipulate multiple pins simultaneously. They work well on pin cylinder and wafer locks.
  • Tension Wrenches:Ā Essential for creating the shear line in pin cylinder locks, tension wrenches come in various types, including Bottom of Keyway (BOK) and Top of Keyway (TOK) wrenches.
  • Skeleton Keys:Ā Used for warded locks, skeleton keys bypass the wards and engage the turning mechanism directly.
  • Disc Detainer Picks:Ā These specialized tools are designed for high-security disc detainer locks, allowing you to align the discs and unlock the mechanism.

Conclusion

Lock picking is an intricate skill that requires patience, practice, and the right tools. By understanding the basics of how locks work, familiarizing yourself with different types of door locks and methods on how to pick a door lock, and practicing the techniques described in this guide, you can develop the ability to pick various locks. Always remember to practice lock picking responsibly and legally.

FAQs

What Locks Cannot Be Picked?

High-security locks with advanced mechanisms, such as certain disc detainer locks and electronic locks, are designed to be extremely difficult or impossible to pick.

How Hard Is It to Pick a Lock?

The difficulty of picking a lock depends on the type of lock and the skill level of the picker. Basic locks can be picked relatively easily with practice, while high-security locks require more expertise and specialized tools.

What Are the Legal Implications of Picking Someone Else’s Lock?

Picking a lock without permission is illegal and considered breaking and entering. It can lead to serious legal consequences, including fines and imprisonment. Always use lock picking responsibly and ethically.

Can you tell if a lock has been picked?

Yes, signs of lock picking include tiny scratches around the keyhole, misalignment of internal pins, and unusual looseness in the plug. A picked lock may also feel easier to turn. In some cases, lock wafers or pins might be slightly damaged. Forensic locksmiths can examine these details more closely to confirm if tampering has occurred.

What household items can you pick a door lock with?

Common household items for lock picking include paperclips, bobby pins, and safety pins, which can be shaped into a tension wrench and pick. Aluminum can strips or small flathead screwdrivers may also work. In some cases, a plastic card can slip a spring latch. These methods work best on simple locks and should be used responsibly.

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