We all know that there are rules for generating US keys, i.e. MACS, Odd/ Even, Repeating adjacent depths, etc.. Are there similar rules for foreign keys or pin tumblers ( residential applications)? Thank you, William
Given that most of these guidelines are based directly on the mechanical principles of the pin tumbler cylinder, why do you think the rules would differ depending on the source or location of the cylinder?
Of course there may be minor local variations in the rules, but they have to work within the same constraints. Violate MACS and you can't cut a working key, for example.
Probably would see more metrics used instead of inch.
goma.
funny.. if one has a new replacement Ford ignition lock, and reads the instructions, you will find that you measure across the cuts in METRIC, to get the actual wafer numbers for the cuts.. --Shiva--
^Yep-seen one.
Murphy's Laws of Key Generation
A miscut key will always work when demonstrated for the locksmith.
The key will stop working the minute the locksmith leaves.
The only key you didn't check to see if it works will be the source of the problem, but you won't find it until you are called back.
What ever key blank the customer has told you to bring will be wrong.
The probability of a miscut key is directly proportional to the difficulty of getting a replacement blank.
Irreplaceable blanks will always miscut, and at the worst possible time.
Blanks that are difficult to clamp in he vise will freely shift on their own.
Parts that clamp in easily will be extremely hard to remove, and removal will be necessary to get the blank to the customer.
The blank you will need will be the irreplaceable blank you threw away last week because there are no more locks of that type around.
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Now a couple from my own life:
After cutting fifty keys (on an obscure Yale V-section, originals not available, need Ilcos) for a MK system at a factory, you will find that many of the plugs have been filed, and that your two-step master key system is essentially a bunch of locks keyed alike. You'l have to regrind them to a four step system, and even then some cross keying will happen.
Ninety nine percent of customers want four keys with that lock.
Essentially no one cares if you use bargain basket blanks, if the keys work.
A small propane heater makes it a lot more livable in the back of the van while cutting keys in the winter time.
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