![]() But all that you need to do is go around the keyway in a circle pressing each pin and continue to do that until the plug rotates. The binding order could be any combination and is completely random. In order to have the pins set, they must be pushed in a certain order. One by one you must depress the pins, and find the binding order. ![]() Tensioning the lock is just a little tricky, especially if you need to hold tension for 3 separate picks (necessary for the more complex tubular locks). Attacking each pin is much easier on tubular locks because the pins are often easy to see. To SPP these locks, you need to push the pins in until they bind. This will take more time than other methods, but that is not to say that it is difficult. For some models, you will need to re-pick the lock at every quarter rotation. To SPP, it might take some time, depending on the security measures of the lock. Despite what some sources might tell you, you can single pin pick (SPP) them. There are a few different ways to pick a tubular lock. Once the key has been fitted correctly in the keyhole, it will depress the key pins to the correct depth. Trying to fit the key in without lining up the notch with the hole will prevent you from inserting the key. Usually, the notch is rectangular, so the keyhole will often look like the power button on a computer. A notch on the key will correspond to fit a similarly shaped hole in the keyway. Due to the shape of the key, there must be a way to identify the correct way to insert it. The shape of the key is circular, open in the center, and has grooves that are cut into the outsides of the circular shape. As a result, the plug (holds the key pins) rests in the same cylinder as the bible (holds the driver pins and springs). Key pins are pushed in horizontally on a tubular lock, compared to a standard pin and tumbler that moves key pins vertically. The lock uses the basic pin tumbler system, but with several important differences. In the ring gap, there can be anywhere from six to eight pins (most often they have seven or eight). It has a basic ring-shaped hole with a solid metal cylinder in the middle. The name tubular lock comes from the circular shape of the keyway. The use of tubular locks has declined recently, but they can still be found sporadically. So the lock that you see on your local coin laundry machine is most likely not as secure as the one you might find on an ATM. Because of advances in picking, new tubular locks employ the use of springs with dissimilar strengths. The basis of this thought seems to come from the fact that they are not widely used. The tubular lock is seen to be a higher security product than other similar locks: average pin tumblers, and wafer locks. Even though they are used to secure the items listed above, they are not the exclusive locks for vending machines, ATMs, etc. It seems more that this usage is a coincidence than it is an informed decision. Although this is a trend, it is unclear if the correlation denotes causation. Things like vending machines, ATM’s, glass display cabinets in stores, bike locks, etc. Tubular locks are often seen on commercial products that are left unattended for long periods of time. But how different is it from your normal everyday lock? Usage Many members of the general public see this different design and assume it is built with top of the line security technology. How does it work? Is it secure? When should I use one? These locks lie outside of the norm and most people have some pretty strong preconceptions about the lock’s ability. ![]() It is a lock that gives most people pause. Ace is the name of the company that first began manufacturing the tubular lock, and the brand has forever held onto this colloquial sense of ownership. Most of the names refer to the keyhole’s round shape, with the exception of the title of Ace lock. It is known as a radial lock, an Ace lock, or more descriptively, a circle pin tumbler. The tubular lock is a lock of many names.
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