Key Duplication Experiment

Key Duplication Experiment: How Many Copies Until Failure?

Key Duplication Experiment: How Many Copies Until Failure?: Is your copied key giving you trouble? Watch Terry from Mr. Locksmith reveal why copying keys isn’t always foolproof. Learn the importance of using original keys to avoid issues.

Key Duplication Experiment: How Many Copies Until Failure?

In this episode, we explore the effectiveness of key duplication by repeatedly copying a key and testing each version. Starting from the original key, we create subsequent copies and observe their functionality. The first copy works perfectly, but as we reach the seventh and eighth copies, the keys increasingly struggle to turn, with the eighth copy ultimately failing to work.

Why do keys become unreliable after multiple copies?

Each time a key is copied, minor inaccuracies and imperfections are transferred to the new key. Over successive generations of copying, these small errors accumulate and can lead to a key that no longer fits or turns smoothly in the lock.

How many times can you copy a key before it stops working?

The answer varies depending on the quality of the original key, the accuracy of the key-cutting machine, and the material of the key blank. In our experiment, a high-quality machine allowed us to make up to eight copies before the key stopped working. Most standard machines, however, might only support four or five generations before problems arise.

Can a poorly made original key affect the quality of the copies?

Absolutely. If the original key has any imperfections, those will be magnified with each subsequent copy. Starting with a well-made original key is crucial to ensuring the best possible duplicates.

What should I do if my copied key doesn’t work?

If a copied key doesn’t work, it’s best to have it checked by a professional locksmith. They can determine if the issue is due to wear on the cutting machine, a problem with the key blank, or if it’s simply a matter of making too many generations of copies.

Final Thoughts Why Key Copies Fail

The Importance of Professional Locksmith Services

At Mr. Locksmith, we pride ourselves on delivering precise key duplication services. The next time you need a key copy, consider the value of professional expertise. A professional locksmith will have the right tools and experience to ensure your key works perfectly, saving you time and frustration.

From everyone here at Mr. Locksmith, thank you for taking the time to understand why key copies sometimes fail. With the right knowledge and tools, you can ensure your keys remain reliable and functional.

Thank You

Again, I’m Terry from Mr. Locksmith. Remember, for any locksmith needs, visit Whether it’s key cutting, lock repair, or security advice, we’re here to help.

The Copy of a Copy Effect: Why Key Copies Sometimes Fail Key Duplication Experiment

Reliable Key Copy and Cutting Services

If you’re searching for “key copy near me,” you’ve come to the right place. Our experienced locksmiths provide fast and accurate key copying and cutting services for all types of keys. From house keys to car keys, and office keys, we ensure precise duplication to keep your property secure and accessible.

Professional Key Cutting Near Me

When you need “Key Cutting near me,” our skilled professionals are ready to assist. Using state-of-the-art equipment, we offer precise key cutting services for any type of lock. Whether it’s a standard key or a more complex design, our locksmiths handle it all with expertise and efficiency.

Key Duplication Services

Our Key Duplication services are perfect for anyone needing extra keys for family members, employees, or emergency situations. We duplicate keys quickly and accurately, ensuring that every copy works perfectly with your locks. Trust us for all your key duplication needs and enjoy peace of mind knowing you have reliable spares.

Comprehensive Key Cutting

For high-quality “key cutting” services, our locksmiths are equipped with the latest tools and technology. We can cut keys for residential, commercial, and automotive locks, ensuring a perfect fit every time. Our comprehensive key cutting service guarantees that you always have a reliable backup for your keys.

Why Choose Mr. Locksmith?

  • Expertise: Our locksmiths are highly trained and experienced in all types of key cutting and duplication.
  • Precision: We use advanced equipment to ensure every key is cut accurately and functions flawlessly.
  • Convenience: Located conveniently, we offer quick and reliable services near you.
  • Car Key Locksmith: Key Copy Near Me
  • Quality: We use high-quality materials to ensure durable and long-lasting keys.

Contact Us Today

For all your key copying and cutting needs, contact us today. We provide fast, reliable, and precise key services to ensure your security and convenience. Visit our location for immediate service or call us for more information. Let us handle your key duplication and cutting needs with the professionalism and care you deserve. Key Cutting Near Me

For Locksmith Training go to

Key Duplication Experiment
Key Duplication Experiment

Mr. Locksmith Training

Locksmith Training
Locksmith Training
The Online Learning and Locksmith Membership Website has:
  • 157 lessons
  • 7.5 hours of video content
  • More info added weekly
Join Locksmith Course & Membership Website.
Are you interested in becoming a Professional Locksmith?
Terry, from Mr. Locksmith, is here to invite you to an exciting on-line locksmith course and Locksmith Membership site.
Sign up today!

Locksmith Course curriculum

  • 157 lessons
  • 7.5 hours of video content
  • More info added weekly
  • Introduction to Locksmithing
  • Keys and Locks
  • Mailbox Locks
  • Locksmith Tools, tools, and more tools.
  • Key & Code Machines
  • Pin Kits
  • Installing Locks
  • Rekeying Locks
  • Duplicate / Cop Keys
  • Top 10 Locksmith Student Mistakes
  • Smart Key Locks | Opening & Rekeying
  • Storefront Locks
  • Lock Picking
  • Master Key Systems
  • Shimming Locks
  • Drilling Locks
  • Opening Bathroom Doors
  • Schlage Large Format Interchangeable Core (LFIC) or (FSIC)
  • Covert and Overt Methods of Entry
  • RV Locks: How to Make Keys to RV Locks
  • Sentry Safes
  • Running Locksmith Business
  • Locksmith Suppliers
  • Automotive Locksmithing (Coming Soon!)

Terry Whin-Yates

Terry Whin-Yates is a 3rd Generation Locksmith with over 35 years of Locksmith Experience. Also, Terry has a BA (Hons) in Criminology from Simon Fraser University.

Terrys’ 24Hr Mr. Locksmith YouTube Channel has 200,000+ Subscribers and 25+ Million Views:

Terry Whin-Yates participates in locksmith podcasts, he writes blogs and posts locksmith videos on YouTube, Social Media, Webinars and has Hands-On Locksmith courses for Law Enforcement, Beginner and Advanced Locksmiths in Canada, USA, South America and Asia.

For Locksmith Training go to Mr. Locksmith Training


Related Posts