How Locksmiths Make Keys

February 27, 2025

Have you ever lost your house key or needed a duplicate for a family member? If so, you've likely visited a locksmith. But have you ever wondered how locksmiths actually make keys? It might seem like magic, but in reality, it's a meticulous process that combines precision, technical expertise, and years of experience. Locksmiths don’t just cut metal; they create access, security, and peace of mind. Let’s dive into the fascinating world of key making and uncover the techniques used by professional locksmiths to craft keys with precision.


Why Should Every Car Owner Have a Spare Key?


Understanding the Basics of Key Making

Key making is more than just copying an existing key. Locksmiths can create keys from scratch, even without an original copy. They use specialized tools and techniques to cut and shape keys that fit locks perfectly. The process involves understanding different types of locks, key blanks, and cutting methods.

There are several scenarios where a locksmith might need to make a key, including:

  • Duplicating an existing key
  • Creating a key when the original is lost
  • Cutting a key to match a lock
  • Crafting a master key for multiple locks

Each of these scenarios requires different approaches, tools, and levels of expertise.


Step-by-Step Process of Key Duplication

When you walk into a locksmith’s shop with an existing key and request a duplicate, here’s what happens:

  1. Selecting the Right Key Blank: Every key has a unique shape, and locksmiths have a variety of key blanks in stock. They choose the one that matches the original key’s profile.
  2. Aligning the Original Key and Blank: The locksmith places the original key and the blank into a key duplicating machine. This machine ensures that the new key is cut precisely like the original.
  3. Cutting the Key: Using a spinning wheel or laser cutter, the machine carves out the grooves and notches in the blank, replicating the pattern of the original key.
  4. Smoothing the Edges: After cutting, the new key often has sharp edges. Locksmiths use a wire brush or file to smooth out any rough areas, ensuring the key slides into the lock seamlessly.
  5. Testing the New Key: Before handing it over, the locksmith tests the key in the lock to confirm it works perfectly.


Making a Key Without an Original Copy

What if you don’t have a spare key for reference? Skilled locksmiths can still make a new one using several methods:


1. Impressioning Technique

Impressioning is an age-old method where locksmiths create a key by making precise marks based on how the lock’s internal pins interact with a blank key.

  • A blank key is inserted into the lock and turned with slight pressure.
  • The locksmith removes the key and examines the marks made by the pins.
  • They file the key at the marked points and repeat the process until the key fits perfectly.


2. Cutting a Key by Code

Many locks come with a key code that locksmiths can use to create a key.

  • The code is entered into a key-cutting machine, which follows pre-set measurements to carve out the correct pattern.
  • This method is common for vehicle keys and high-security locks.


3. Disassembling the Lock

For high-security locks, locksmiths may need to disassemble the lock cylinder to determine the correct pin placement.

  • They use specialized tools to remove the cylinder and analyze the pin arrangement.
  • The locksmith then cuts a key based on the measurements of the pins.


Risks and Challenges in Key Making

Key making is not without its challenges. Some common issues locksmiths face include:

  • Worn-out Locks: If a lock is old or damaged, making a key that fits perfectly can be difficult.
  • High-Security Keys: Some modern locks use patented key designs that require special authorization to duplicate.
  • Misaligned Cuts: Even a tiny error in cutting can result in a non-functional key.

Professional locksmiths overcome these challenges by using advanced key-cutting machines, training extensively, and employing precision techniques.


Expert Recommendations for Key Maintenance

To ensure your keys and locks function smoothly, follow these tips:

  • Make duplicates before losing the original key: Always have a spare key made to avoid emergency situations.
  • Lubricate locks regularly: Using graphite powder or silicone-based lubricants can prevent keys from getting stuck.
  • Store spare keys safely: Avoid hiding spare keys in obvious places like under doormats. Consider giving one to a trusted friend or using a secure key lockbox.
  • Upgrade to high-security keys: If security is a concern, opt for high-security locks with restricted key duplication.


Conclusion:

Locksmiths play a crucial role in maintaining security, and their ability to craft keys from scratch is nothing short of remarkable. Whether it’s duplicating a key in minutes or meticulously crafting one from a worn-out lock, their skills ensure that homes, businesses, and vehicles remain secure. Understanding the process of key making not only demystifies the work locksmiths do but also highlights the importance of skilled craftsmanship in our everyday lives.


So, the next time you get a key made, take a moment to appreciate the precision and expertise that goes into it. After all, a good locksmith doesn’t just cut metal—they create peace of mind.

Call Us Any Time!

Call Now
By Youmna Rehman October 30, 2025
Learn how to maintain locks in coastal, salt-air environments. Discover the best materials, cleaning techniques, and maintenance practices to prevent corrosion, ensure smooth operation, and extend the lifespan of your locks near the ocean.
By Youmna Rehman October 30, 2025
Discover the psychology behind how burglars choose which locks to target first. Learn what cues attract intruders, which entry points are most vulnerable, and how to use behavioral and physical strategies to deter break-ins and strengthen your home security effectively.
By Youmna Rehman October 28, 2025
Renovating your home? Learn how to protect your locks from dust, paint, and damage during renovation. Expert tips from Brothers Locksmith to keep your home secure before, during, and after construction.
By Youmna Rehman October 28, 2025
Explore the key differences between magnetic door locks and deadbolts. Learn their pros, cons, and ideal use cases to help you choose the best locking system for your home or business.
By Youmna Rehman October 28, 2025
Utility rooms and service entrances are often the weakest security points. Learn how to strengthen these doors with the right locks, reinforcements, and professional locksmith solutions to protect your property from break-ins and tampering
By Ghulam Mustafa October 27, 2025
Looking for the best smart lock for your multi-tenant property? Discover how to choose locks that balance security, convenience, and scalability — plus expert advice from Brothers Locksmith on managing multi-user access and digital lock maintenance.
By Youmna Rehman October 27, 2025
Wondering if a locksmith can unlock your smart lock without damaging it? This detailed guide explains how professionals safely open, repair, and reprogram smart locks using non-destructive methods, when replacement is necessary, and what to expect during the process.
By Youmna Rehman October 25, 2025
Want to boost your home or business security? Learn how to chain multiple locks effectively for maximum protection. Discover the best combinations, proper installation techniques, and expert locksmith tips to keep intruders out and your property safe.
More Posts