Key Machines, Decoding, Shimming & More

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Key Machines, Key Duplication, Shimming Locks, and the use of Space and Depth keys

The tools discussed and the skills covered are very important to the locksmith as they are used on a daily basis. After completing the course, and practicing the skills, you will be able to use a key machine to duplicate a key, (both a regular key and also an automotive sidewinder key), cut keys by code, shim locks, and use space and depth keys.

This video runs 1 hr. 35 min. and is divided into 12 parts:

  • Part 1 – Introduction to key machines — which will include a discussion of how the locksmith’s van is set-up to accommodate the machines
  • Part 2 – Key duplication
  • Part 3 – How to shim a lock
  • Part 4 – How to decode the lock
  • Part 5 – How to use space and depth keys to make a key
  • Part 6 – A shimming demonstration with a Kwikset lock
  • Part 7 – A shimming demonstration with a Schlage lock cylinder
  • Part 8 – A second demonstration of shimming a lock, decoding it and cutting a key for it using space and depth keys
  • Part 9 – Cutting sidewinder key
  • Part 10 – High Security Space & depth keys
  • Part 11 – Electronic Key Machines
  • Part 12 – Review and suggested practice


After study and practice you should be able to:

  • 1.  List the basic categories of key cutting equipment.
  • 2.  List at least three major suppliers of key machines.
  • 3.  Explain how to supply power to a mobile key machine.
  • 4.  Identify the main parts of a key machine.
  • 5.  Explain how to use a key duplication machine.
  • 6.  Explain how to shim a lock.
  • 7.  Explain how to decode a lock.
  • 8.  Explain the function of space and depth keys.
  • 9.  Explain how to use space and depth keys.
  • 10.  Explain how to cut an automotive sidewinder key.

More skills equal more opportunity to earn more!

Only one locksmith job will pay for the course!