5 Types of Key Duplication

Whether you just want to have a spare key as a backup or need one for a friend or family member, getting a duplicate key made is much faster and simpler than you might think. Key duplication is also a great way to prevent lockouts from occurring in the future.

Key Cutting Machine

A key cutting machine is a metalworking tool used to perform key duplication by placing an original key in one vise and the blank key in another, then running both through a cutter to create a new copy. Depending on the model of key duplication machine, it can be equipped with a variety of options to suit your needs.

Some are designed for Kwikset, Schlage, SC1, and SFIC keys and include a tracing feature to help you follow the key’s grooves and teeth with precision. Others are more general in nature and are capable of analyzing the key type and determining how to cut it.

Those that offer app-based operation make it simple to download and apply software updates from the internet, allowing you to keep your equipment up-to-date without having to touch your computer. Several also provide a handy USB thumb drive that allows you to carry the update with you in case the machine loses its data connection while operating.

Punch Machine

The Punch Machine is used to perform key duplication when an original key is not available. It uses a standard locksmith machine and is easy to operate and extremely accurate.

The machine has a combined device which is different from the traditional brake with high sensitivity and combines the double electromagnetic control valve and overload protection device commonly used in international high-end equipment, to ensure the accuracy and safety of the high-speed movement and stops of the punch sliders. It is also equipped with an automatic feeding device, with feeding error detection and pre-cutting and pre-breaking devices, achieving fully automated production for labor saving and high efficiency.

The machine is easily operated, simply slide the code bar to the space and depth number required, press and release. The machine will automatically move to the next space, and can be repeated up to 7 times. Not all keys can be originated using this method, if the key blank has a paracentric keyway it will distorted when punched.

File Method

The File class is an abstract representation of a file and directory pathname. It has many methods for working with files, including creating new directories and files, deleting them, listing the contents of a directory, and reading and writing from files.

There are two important methods that you should use to read and write from a file. The.read() method reads one line of data from the file and returns it in a string. The.readlines() method reads a sequence of lines from the file and returns them as list elements.

Several other useful functions are available on the File class, such as encoding, which is used to convert Unicode strings to byte string values; and mode, which specifies the type of file (rt for textual, o for binary). To change the file position, you can use f.seek(offset, whence). To flush the internal buffer like stdio’s fflush, you can use f.flush().

Cast Method

The cast method of copying keys involves making an imprint in a hard medium such as clay, then casting hot metal into that mold. It’s more difficult than the other do-it-yourself key duplication methods, but it can produce excellent results. The method is especially useful for keys that can’t be copied with the other methods (such as curved dimple keys to Abloy Protec locks or hex key locks) or when access to tools like a grinder isn’t available.

To make a key with this method, cut a strip of clear packing tape that is bigger than the original key. Heat one side of the key with a lighter until it turns black (soot buildup). Place the key on the tape and press firmly. Remove the tape, and a black imprint of the key should remain. You can now make a new key using the casting process. Just remember that casted keys aren’t as strong as a traditionally cut key.

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