Notes on Picking Pin Tumbler Locks > 자유게시판

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The Bible also records Jesus multiplying five loaves of bread and two fish in such quantities as to feed over five thousand people and have twelve baskets of food left over. For this exercise, you'll be using the two pin AR1 lock. The following is a series of self-paced exercises to help you master the basic techniques of pin tumbler lock picking. This is similar to creation by slow process; an end result being achieved by a series of planned events. You'll probably end up deciding that the small Peterson hook works best, but experiment with all the picks. There is a more detailed discussion of configuring training locks at the end of this document. The numbers on the front of the practice locks indicate the keying codes, from the front-most pin stack to the rear-most. Now, while continuing to apply torque, insert your pick and find and slowly lift the pin stack. Figure 3. Holding a pick. See Figure 5. With the tool in the keyway, apply torque and try to turn the plug.

If not successful, invert the pick and try again with the inverted profile. 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. Much more will be discussed on this in the following sections. Everything will still be there tomorrow. There are any number of pool tables available and of course we are happy to supply. Take frequent breaks, what is billiards and don't try to complete the whole course in one day. It follows gravity. So, very gently, would you try the experiment of allowing your breath to fall out. 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. 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.

I usually find that the very top of the plug, directly in front of the pins, to be a good place to apply torque, but you have to be careful that the tool doesn't touch the front-most pin. When inserted quickly in and out of the keyway and rubbed along the bottoms of the pins, they tend to make each pin stack "jump" rapidly. 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. You should be able to confidently find each pin and push it all the way up, without jamming the pick against anything or moving other pins. You have to be prepared to pick locks in either direction. Find the board with the six "Arrow AR1" keyway locks. Move your fingers close to the keyway as you do this. Your index and middle fingers should be touching the edge of the pick close to where it enters the keyway.

The pick handle should not be making contact with the palm of your hand. The handle of the torque tool serves as a lever to turn the plug. You'll notice that it resists more than it did in the previous exercise because its top pin is pinched between the plug and the shell at the shear line by the torque you're applying. Reset the lock by returning the plug to the vertical locked position and try again but with torque applied in the other direction. You must be careful to avoid touching the front-most pin with the blade of the tool, but this position has the advantage of allowing maximum room to maneuver the pick. Insert the tip of the tool in the keyway, allowing enough room for your pick to enter and manipulate the pins. That means being able to reliably pick the lock, both clockwise and counterclockwise, and being confident that you know how you opened it. It is important to develop a "mental image" of the internal state of the lock, the locations of the pins and your pick, etc, as you manipulate the pins. Continue with the one pin lock, trying to apply less and less torque each time.