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These imperfections are very small -- as little as .0001 inches in some cases -- but they are what allow us to manipulate ("pick") locks open without using the correct key. Spring steel or stainless steel, between .020 and .035 inches thick, are typical materials. The traditional torque tool is made from stiff, flat spring steel, bent at a 90 degree angle to provide a small blade that fits in the keyway and a long handle to which torque is applied. They typically assume that their billiard ball is an infinitely small, dimensionless point and that it bounces off the walls with perfect symmetry, departing at the same angle as it arrives, as seen below. If you have any issues with regards to the place and how to use what is billiards, you can contact us at our own web-site. In an ideal lock, all of the pin holes in the plug would be in perfect alignment with the corresponding holes in the shell, the centerline of the plug would be exactly parallel to that of the shell, and all of the pins would be exactly the same diameter. The proper pick and torque tool selection depend on the shape of the keyway, the features of the lock, the picking technique, and the individual preferences of the user. The pick must be strong enough to resist bending or breaking while lifting pins, yet the shaft must be small and thin enough to maneuver freely around the keyway without disturbing other pins.

As the peaks hit the pin stacks, energy is transferred from the bottom pins to the top pins, much like the action of the cue ball in billiards. The rest is just technique -- locating and recognizing the state of each pin stack, manipulating the pins, applying torque to the plug. Note the border between the plug and shell, which forms the shear line, and the cuts in each pin stack resting within the plug. The top pin of the most misaligned pin stack becomes "pinched" at the shear line between the plug and the shell. The resistant pin stack is the called the binding pin. Pin tumbler lock picking consists of raising the cuts on each pin stack to the shear line, one by one, until the plug turns freely. The top pin of that pin stack will be trapped above the shear line, the bottom pin will fall freely, and now a new pin stack (the next most misaligned one) prevents further rotation.

In particular note that because the pins are slightly out of alignment, as the plug is turned gently, only the pin stack that is most out of alignment actually prevents further rotation. It prevents the cue from sliding off the ball, keeping it precise. There are three ways of scoring: (1) the losing hazard, or loser, is a stroke in which the striker’s cue ball is pocketed after contact with another ball; (2) the winning hazard, or pot, is a stroke in which a ball other than the striker’s cue ball is pocketed after contact with another ball; (3) the cannon, or carom, is a scoring sequence in which the striker’s cue ball contacts the two other balls successively or simultaneously. In the early 1800s, Captain Mingaud invented the modern cue tip and masse shots while imprisoned for conspiracy in France. The shape of the tip is the most obvious difference between picking tools, with hooks, half-diamond, ball, double ball, wave, sawtooth and other styles available. The basic skills of pin tumbler lock picking include selecting the proper tools, manipulating pins through the keyway, applying torque, and recognizing the state of each pin.

Practice picking the two pin lock until you can do it easily and naturally. Good tools are important, to be sure, but once a few basic tools are available the student of lock picking is usually better off investing in new locks on which to practice rather than in new picking tools. In the lab there is a collection of "training locks," mounted on boards, for practice. That's it -- now you know almost everything there is to know about lock picking. In general, the torque tool should be as thick as possible while still fitting in the keyway, and of a width sufficient to provide good control but without interfering with the picking tool's access to the pins. The selection of the torque tool is just as important as that of the pick, but, again, commercial pick kits often fail to include a sufficient range of sizes and designs to allow good control and feel across the range of common locks.

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