![]() Because it's pin tumbler design, the master key combinations are limited to the length of its pins. ![]() Springs wear out.ĥ) Limited master key range. This lock uses pin-tumbler design (though a neat inner and outer set) that has springs. Often the key is hard to push in because the pins are worn and the key has difficulty ramping up.Ĥ) Springs. We have experienced a few calls in the field involving keys to these locks wearing out and not being able to smoothly open the locks or not at all. (689) Mul-T-Lock Picked (Thanks Jacob!) - YouTubeģ) Wear and tear. Mul-T-Lock MT5+ Mortise Cylinder Picked and Gutted - YouTube We consider a high security lock as a lock that no one can pick. That means that it can be legal to make equipment to copy keys and copy keys, though third party solutions might not be readily available at the time of writing to the general public.Ģ) Can be picked. The patent for Mul-T-Lock Interactive expired 2013. They shouldn't be able to be picked open or bypassed even by locksmiths, and they should take forever to get through even via forceful destruction.ġ) Patent expired. So it's important the lock has no weaknesses against surreptitious and unauthorized entry. How do you find the originating locksmith? It should be stamped or marked on your high security key.Ģ) They have important stuff to protect. In addition to finding the locksmith who originated that key, you also have to show proof that you are allowed to copy the key via a registration card or other signed documentation. Other locksmiths cannot make a copy they don't have the key copying equipment or access the original key blanks of that brand of lock which are physically different and wont fit into another locksmith's restricted keyway. Generally when a customer has a restricted key, they need to go back to the locksmith who supplied that key and lock system to make a copy. All the three brands listed above have physically and procedural restricted key copying. They want to keep those who have the key from making unauthorized copies. There are two reasons our customers need high security locks.ġ) Restricted Keyway. We have made this choice because of the research and our experience as described below. Abloy Protec2 locks are our favorite choice out of the current known set of high security lock options including Medeco, Mul-T-Lock. Our company supplies and installs Abloy locks that are high security with restricted keys.
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