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In lighter duty applications, such as smaller utility trailers, a ¾-inch diameter lockrod can be used; these can be made of steel or aluminum. In addition to the rod and handle, the cams and keepers metal matches that of the other lockrod parts. For example, if the lockrod were stainless steel, cams and keepers would be stainless to match.
Additionally, a series of grooves on either side of the key's blade limit the type of lock the key can slide into. As the key slides into the lock through the keyway, the wards align with the grooves in the key's profile to allow or deny entry into the lock cylinder. A traditional pick set.
Padlocks with modular locking mechanisms can often be taken apart to change the tumblers or to service the lock. Modular locking mechanism cylinders frequently employ pin, wafer, and disc tumblers. Padlocks with modular mechanisms are usually automatic, or self-locking (that is, the key is not required to lock the padlock)
A padlock skeleton key with all of the teeth filed down (right) and a normal key (left) for the same lock. The normal key on the left will open only the lock that it goes to, but the skeleton key on the right will open any lock with this particular keyhole. Two warded lock keys and a homemade skeleton key
Since the can is open when immersed, this demonstration only works with aluminum cans. Aluminum cools quickly when immersed, causing almost instantaneous condensation of the steam, leading the weak aluminum to collapse. With steel cans the water in the cooling bath condenses the interior steam by contact through the opening in the can.
A lock bypass is a technique in lockpicking, of defeating a lock through unlatching the underlying locking mechanism without operating the lock at all. It is commonly used on devices such as combination locks, where there is no natural access (such as a keyhole) for a tool to reach the locking mechanism. Because the mechanism itself is not ...
Many combination locks have three wheels, but the lock may be equipped with additional wheels, each with a drive pin and fly, in a similar manner. The number of wheels in the mechanism determines the number of specific dial positions that must be entered to open the lock, so a three-sequence combination is required for a three-wheel lock.
The same physical principles are involved in lock bumping, but the snap gun automates the transfer-of-energy process. A correctly applied snap gun can open a lock very quickly compared to traditional lock picking, but the sharp impact is more likely to damage the lock mechanism than raking, which mimics normal key movements.