There are many different ways to code a key and many different types of keys that require the know how, and understanding of this technique. There are, however, two types of codes, direct and indirect.
A direct code is one that makes no attempt to disguise the combination of a lock and charts that come with pinning kits are able to be used. Most of the basic and common low cost locks sold in stores like Home Depot and other home improvement stores usually have direct codes.
An indirect code must be fitted translated to a direct code with the use of a code book or any type of software that most reliable Phoenix locksmiths possess. Indirect codes will be on locks of medium to higher quality.
Many lock manufacturers add a stamp to their keys and locks that lets a locksmith know how to go about making a key from a blank. To aid in this locksmiths will use a key coding machine that allows a key to be made when the original is not present. Once the code is obtained the key can be made with the coding machine or by hand with a file or other tools, but the key coding machine is much faster.
With depth, each cu is identified by a simple single number.
The two important dimensions to cutting a coding a key are depth and spacing. This implies the manner in which the key is to be cut. When cutting into the blade of the key depth is describes how deep the cuts need to be made. There are exact dimensions measured from the bottom of the cut to the bottom of the key blade that must be made.
Spacing, which is determined from left to right, is where the cuts on the key are placed, representing the distance between the centers of the adjoining cuts and when using a key coding machine a spacing plate is used.
Commercial locksmiths are incredibly good at coding keys and have spent many years honing this skill. Key blanks are necessary and will the locksmith will always have these on hand in the shop and in most cases in the field.
When calling a locksmith always be certain to give correct information about your locks at home or on your vehicle by providing the make, model and year made of the car or truck and if you can, provide the name of the lock manufacturer and model number of the product if that information is readily available. This will ensure a fast and easy experience as the locksmith will be able to bring the proper tools, supplies and any replacement parts required for the job.
While there are many hobbyists that attempt to make keys, pick locks, and learn try to acquire the skills of a locksmith it is best to remember not to use any locks that are important as they can be damaged if a key is cut in any wrong manner. For emergency situations always refer to your local locksmith.