This is a repository of the most up-to-date versions of Deviant's lock diagrams and animations. Seen in all of the TOOOL educational materials and slide decks, these files are all released under the Creative Commons license. You are free to use any of them for non-commercial purposes, as long as they are properly attributed and the same freedom for others is maintained in all derivative works.

Please note that these diagrams have evolved and developed over time. While Deviant is still proud of the older versions of his images, if you still have copies of legacy material they should all be replaced with the latest versions available here. Each image shown below in thumbnail form can be accessed in high resolution individually, or you can obtain the full set from the zip archive at the bottom of this page.

Lock Basics and Mechanical Operation

How pin tumblers are arranged and how locks operate (or fail to) with conventional keys

Introduction to Lockpicking

Overview of why lock picking is possible and the use of basic pick tools

Manipulation-Resistant Locks

Spool pins, mushroom pins, and other ways of increasing security

Diagrams of Bumping Attacks

Animations showing how snapping guns and bump keys work

Key Impressioning

Many detailed, step-by-step diagrams and animations detailing the process of key impressioning

Master Keying and other Miscellaneous Matters

Diagrams that do not fall into a specific category