The principle of the pin tumbler is a series of tumblers resembling small pins (usually 5) held in place by other pins resting on top of them, called drivers, which are in turn, held in place by springs.

Locks that use regular, smooth pins are the easiest to pick, and are the best to learn with.

Picking locks requires two intrinsic items: A pick and a tension tool.

A good range of pick thicknesses is from .025-.035”; too thin will slip the pins out of alignment, and too think will bind in the keyway. The most useful pick is probably the curved variety, although straight picks have their uses…

Once you have mastered the art of picking you are ready for bigger and better things. Raking method is especially nice if you’re in a hurry.

You will learn about pin tumbler locks, tools required, various methods of lockpicking. Learn how to pick locks with this easy to follow guide.

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Any security program or system designed to combat the security threats will prove ineffective unless it is supported by an effective security education program.

A positive personnel movement control system must be established and maintained to preclude unauthorized entry, and to facilitate authorized entry at personnel control points. Access

Expensive equipment and sensitive information is usually concentrated in a military computer complex. Protective security measures should be established for the equipment, information, operational programs maintained in the complex, and for the facility that houses the processing, main storage units, and remote components

Transportation security has evolved to encompass all security measures taken to protect shipments from criminal/terrorist activity.

You will also gain knowledge on the procedures to be used for conducting physical security inspections, surveys, and vulnerability tests. They are guidelines to help you determine the adequacy of security for a particular facility or installation.

Each topic in Physical Security Military Manual is cited with an in-depth explanation:

• The Systems Approach
• Planning, Programming and Budgeting
• Education
• Personnel Movement Control
• Protective Barriers
• Protective Lightening
• Intrusion Detection Systems
• Lock and Key Systems
• Security Forces
• Port and Harbor Terminal Security
• Computer Security
• Transportation Security
• Hospital Security
• Personnel Security of Designated Individuals
• Nuclear Reactor Facilities
• Military and Civil Works Projects
• Security Analysis and Evaluation
  • Pilferage
  • Sabotage
  • Espionage
  • Bomb Threats
  • Countering Terrorism
  • Physical Security Plan
  • Contract Guards
  • Game Wardens Role
  • Cargo Security Management
  • Commissary Outlets and Storage
  • Escorting Public Funds
  • Closed Circuit Television
  • Finance and Accounting Office
  • Mail and Postal Effects
  • Checklists
  • Organizational Effectiveness Approach to Physical Security
  • Contingency Plans
  • IDS Application and Component Charts
  • Glossary of Terms
  • Forms
  • Convoys, Trains, and Pipelines
  • References

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The technique shown here for opening locked door is the most basic. For this it has to be a door with a gap as wide as a width of a butter knife.

You are going to learn most the simple ways to pick file cabinet locks and open locked doors by reading this file.

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Knowing how a lock works when it is opened by a key is only part of what you need to know. You also need to know how a lock responds to picking. From this manual you will learn the models which will help you understand a lock’s response to picking.

The key is inserted into the keyway of the plug. The protrusions on the side of the keyway are called wards. Wards restrict the set of keys that can be inserted into the plug. The plug is a cylinder which can rotate when the proper key is fully inserted.

In order to become good at picking locks, you will need a detailed understanding of how locks works and what happens as it is picked. This document uses two models to help you understand the behavior of locks. You will learn about a model that highlights interactions between pin positions. Workings of picking and complicated mechanical defects will also be explained here.

The procedure for one pin at a time picking a lock is to apply a sheer force, and the pin which is binding the most, and push it up. When the top of the key pin reaches the sheer line, the moving portion of the lock will give slightly, and driver pin will be trapped above the sheer line. This is called setting a pin.

MIT Guide to Lock Picking presents us with basic concepts and definition with detailed understanding of how locks works and what happens as it is picked with a lot of other pertinent information.

Contents in MIT Guide to Lock Picking is categorized in following order:

• It’s Easy
• How a Key Opens a Lock
• The Flatland Model
• Basic Picking & The Binding Defect
• The Pin Column Model
• Basic Scrubbing
• Advanced Lock Picking
• Mechanical Skills
• Zen and the Art of Lock Picking
• Analytic Thinking
• Exercises
• Exercise 1: Bouncing the pick
• Exercise 2: Picking pressure
• Exercise 3: Picking Torque
• Exercise 4: Identifying Set Pins
• Exercise 5: Projection
• Recognizing and Exploiting Personality Traits
• Which Way To Turn
• How Far to Turn
• Gravity
• Pins Not Setting
• Elastic Deformation
• Loose Plug
• Pin Diameter
• Beveled Holes and Rounded pins
• Mushroom Driver Pins
• Master Keys
• Driver or Spacer Enters Keyway
• Vibration Picking
• Disk Tumblers
• Final Remarks
• Tools
• Pick Shapes
• Street cleaner bristles
• Bicycle spokes
• Brick Strap

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Two functions are available in the locks, NKR (Non Key Retaining) and NRK (Non Removable Key) and both functions are accomplished as a design feature of the extension.

Master Lock Company makes seven basic cylinder sizes/types for use in our padlocks. All locks are supplied with a six pin length cylinder for uniform keying capability. The cylinder may be combinated with 4, 5, or 6 pins to accommodate existing key codes.

Master Lock keys are coded from bow to tip and with a few exceptions, the increment used is .0155″. Master Lock keys will be encountered with two types of stamping on them. Both direct and blind codes are stamped on the keys for different products.

All the locks use an extension mechanism that causes the ball bearings to lock or unlock the shackle. Typically, these locks are supplied with a non key retaining function extension.

Master Lock ProSeries Padlock Technical Manual has well illustrated text with more than 3 pages of lock terminology.

Following matter is covered in this technical manual:

• ProSeries® Rekeyables Component Parts
• ProSeries® Interchangeable Core Service Procedure
• ProSeries® Interchangeable Core Component Parts
• ProSeries® Door Hardware Service Procedure
• ProSeries® Door Hardware Component Parts
• Cylinders and Retainers
• Cylinder Service Procedure
• Keys and Keyways
• Keying
• ProSeries® Extensions, Retainers and Drivers
• Tools
• Bitting Specifications
• Terminology

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There are “MASTER KEYS” available for certain types of locks, but these are harder to get and they aren’t even real picks. Sufice to say they do the job if you can get them. Otherwise there are three general clasifications of “lock picks.”

The Tension wrench is not a pick, but you need one. It’s “L” shaped and used with all picks. You usually get one with a set of picks. This is used to put pressure on the tumblers in a lock when you are using a pick. Therefor, once you “solve” a specific tumbler, it will stay in place while you move on to the next tumbler.

A concise but useful compilation of information is provided in this file. Believe it or not, you will probably be able to pick some locks within 15 minutes of reading this file, without picks…

The contents in The Lockshop Tutorial are arranged in following order:

• Introduction
• Types of Locks
• Types of Picks and ways of picking
• How To Obtain Picks

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There are two sets of five pins in each lock, top and bottom, and a set of springs. The top pins are all the same size and are flat on both ends

Inside a Kwikset/Society Brass Collection Rekeying Kit are the different bottom pin sizes you need to rekey a lock, a Key Gauge for reading the cuts on a key, a Cylinder Removing Tool (affectionately known as a “pick¬le fork”), and a plug follower. This is a very simple device which keeps lock parts from scattering across the room when you remove the plug (which houses the pins, and into which the key fits) from the cylinder.

Before you can rekey a lock, you have to know what pins to use. For obvious security reasons, Kwikset doesn’t print key-cut combinations on the packaging. We use this Key Gauge to find the key-cut combi¬nations. Before disassembling the lock, measure the cuts and write down the numbers. There are also extra top pins, springs and other parts in the kit.

Kwikset Rekeying Manual contains complete very well illustrated on rekeying. By reading this manual you will expand your knowledge on following topics:

• How a Lock Works
• Tools to Rekey
• How to Gauge a Kwikset Key
• Key Duplication
• Masterkeying
• Keying Master Cylinders
• Rekeying Knobs
  • Laurel Eggknob
  • Knobs with a control key
  • Knobs with a standard operating key but without a control key
  • Knobs what to do if top pins and springs drop out during rekeying
• Rekeying Levers
  • Levers for Commercial Series levers
• Rekeying Handlesets
• Rekeying Deadbolts .
  • 780 Deadbolt with a control key
  • 780 & 980 Deadbolt without a control key
  • 780 & 980 Deadbolt without a key or control key
  • 980 Deadbolt what to do if top pins and springs drop out during rekeying
  • The Society Brass Collection
  • Knobs & Levers
  • Low Profile Deadbolt with existing key
  • Low Profile Deadbolt without existing key or if springs have fallen out
• Notes
• Glossary of Terms

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In order to understand how to compromise a lock there are certain steps which are essential to laying a proper foundation. They are: A through working knowledge of the lock mechanism, how it functions, and the ability to recognize these factors so that you are able to overcome them.

Tool design is a direct result of the function it will be required to perform and falls into one of the three major categories: Hook tool, Diamond Pick, Rake. Other individual styles of picks are usually just a modification of one of these groups.

CIA Lockpicking – Field Operative Training Manual covers following topics broadly with relevant diagrams and images.

• Introduction
• Basic Lock Picking
• The Concepts Behind Lock Picking
• Picking Procedure
• Most Common Picking Techniques
• The Lock Picking Process
• Conclusions

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