Notes on Picking Pin Tumbler Locks > 자유게시판

Try each of your torque tools in the lock. They require special picking tools to manipulate the tumblers and apply torque. The following is a series of self-paced exercises to help you master the basic techniques of pin tumbler lock picking. What follows is a brief summary of several of the most popular techniques. The players use the white (or yellow) balls as the cue balls. You can use the cue ball, solid red ball, and solid yellow ball from your 8-ball pool set. One of the white balls (plain or spot) serves as the cue ball for each player, the red ball and other white ball serving as his object balls. The handle of the torque tool serves as a lever to turn the plug. It is usually possible to insert the torque tool at either the top or bottom part of the keyway. Now, while continuing to apply torque, insert your pick and find and slowly lift the pin stack.

Insert the tip of the tool in the keyway, allowing enough room for your pick to enter and manipulate the pins. Using the five or six pin lock, find a pick that lets you locate and lift each pin across its full range of motion without disturbing adjacent pins too much. Each board is labeled with its keyway, and each lock cylinder on a board is labeled with the number of installed pin stacks (from one to six) and the keying code for its pinning. The six character keying code gives the pinning from the front of the lock to the back, with a "-" for a missing pin stack and a digit for a pin that is installed. It won't turn, of course, because the cut of the (single) pin stack is still below the shear line and its top pin is preventing the plug from rotating. As you lift the pin stack with torque applied, eventually its cut will reach the shear line, allowing the plug to turn; the top pin will then be completely trapped in the shell, while the bottom pin stays in the plug, no longer held down by spring pressure.

For example, Medeco locks use special wedge-shaped bottom pins that are rotated into one of several possible positions by the key cuts (which can be cut at different angles). In the lab you'll find a collection of small (12 inch by 18 inch) lock boards, each containing six specially pinned locks with a given keyway. However, your efforts un-pinning and re-pinning locks will be time well spent -- you will progress much faster than you would if you tried to start out picking fully pinned cylinders. When you feel confident visualizing and using picks to maneuver around the pins in the AR1 and SX keyways, you're ready to start actually opening locks. Intuitively visualizing the inside of a lock takes a bit of practice, but will pay off as you start picking locks in earnest. This keyway is a bit more "open" (it's intended to allow several different key profiles to fit in it), and so requires the use of a larger pick than the Arrow AR1 keyway does. "My mother had a fit while she was carrying me in the womb." "They didn’t bring me up right." And then they go to the mother and say, "How is it that you could’ve been so irresponsible with your children?

As a general rule, locks mounted on the left side of a door open clockwise, while locks on the right side of a door open counterclockwise. It can become very tempting to "cheat" a bit here and move ahead the moment you get a difficult lock open the first time, what is billiards but that will only make the rest of the course that much harder. Small digits represent short bottom pins (that must be pushed up more to reach the shear line); large digits represent longer bottom pins (that need only be pushed up a bit). In 9-ball, players must pocket the balls in numerical order, with the 9-ball serving as the game-winning ball. The player must then pocket a numbered ball, or cause the cue ball or any numbered ball to contact a rail. In the case of pool games, the number of balls might change depending on the direction given to the game, but mostly, pool includes a full set of sixteen balls of 2 1/ 4 inches in diameter, where eight of them are color numbered from one to eight, and the other seven balls have a stripe of color and are numbered from nine to fifteen; finally there’s a white cue ball.