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Chubb 6K75 Pin & Cam System (pair)

This lock was produced in 6, 7 & 8 lever versions. The 6 lever locks are extremely rare. However we can supply a 6 lever tool upon special request. The standard equipment for the 7&8 lever locks is two pin & cam tools with one pin box.

The Pin & Cam System was developed by Falle-Safe Securities in 1991\r\nand was initially designed for use on the Chubb Castle mortice lock. It\r\nis a highly effective and user friendly method of defeating most High\r\nSecurity Lever Locks and is effective regardless of

a) The quantity of levers contained in the mechanism.
b) Barrel and curtain or pick protector mechanisms.
c) False notching on levers designed to frustrate picking.

The term Pin & Cam refers to the original design, which used a small cam to apply lift to the pins in the key tip.

The basic concept on which the system works is similar to that which is employed by the impressioning technique.

When\r\nimpressioning a lever lock the user applies torque to the mechanism by\r\nway of a Blank key. This blank is then moved in relation to the\r\nmechanism which will in turn mark the surface of the key in any\r\nposition where the levers are binding or not in the correct position.\r\nThe user then files away the blank wherever the markings are and\r\nrepeats the procedure until the key begins to form and the lock opens.\r\nThe Pin & Cam System also carries out the same function but does it\r\nmechanically and in a more controlled and scientific way. Continued\r\nwithin the Tubular Key Tip is a specially designed Tester Mechanism.

The\r\nTubular Key Tip has a series of holes along its length into which small\r\npins can be placed. The length of these pins corresponds to the lengths\r\nof the normal cuts on a key effectively creating a Variable Key System.\r\nThe Tester Mechanism is used during the decoding procedure to lift the\r\npins and see if they are loose.

The user starts the process by\r\ninserting the longest pins into each of the holes on the tip\r\neffectively creating a blank key. The tool is then inserted into the\r\nlock and torque is applied to the levers by way of the Handle Grip.\r\nEach lever is then tested to see if it is loose and this is done by\r\npositioning the Tester Mechanism under each pin in turn. If the pin is\r\nstiff and will not move freely it is because the lever is binding and\r\nin the incorrect position. This tells the user that the Pin in that\r\nposition is the incorrect length and needs to be changed for a shorter\r\none.

If the pin is loose it means that the lever is either in\r\nthe correct position or not binding at that time and the Pin should\r\ntherefore not be changed. Each time the user changes a Pin he is\r\neffectively changing the shape of the key and if the procedure is\r\nrepeated the correct key shape will begin to form and the lock will\r\neventually open.

False notching does not effect the system\r\nbecause all levers will eventually bind and only a lever, which is in\r\nthe correct position, will remain loose until the lock opens.

Each\r\nPin & Cam System is designed to be as user friendly as possible.\r\nThe Pins are contained in a Pin Box and this is designed in such a way\r\nas to prevent the user from getting lost in the system. It only takes a\r\nfew seconds to try each of the pins and discover the ones that need to\r\nbe changed. Once the lock has opened the user will be able to determine\r\nthe correct key code by reading off the codes of the Pins in the Key\r\nTip.

System Advantages
This method is without doubt the most\r\neffective way of defeating high security lever lock mechanisms. The\r\nsystem is easy to use, relatively quick and provides the user with a\r\nworking key and code for future use.