The process of cutting a car key uses specialized machines. These will use metal cutting tools to grind away the softer metal of the mechanical key. The metal of the key cutter’s blade must be harder than the metal of the key. The average key is made from brass, which is a metal used for key making due to its machinability. It is hard, resistant to weathering, and does not corrode easily, but it is still easy to machine. This makes it the ideal material for a key. With a key cutter that uses a hardened steel blade, shaping the physical key is very easy. The key cutter takes a full blank, which will have the proper warding for the car cylinders.
Within general standard cut that a particular manufacturer uses, some models will have a different key blank. Often the different key will be based on the year of the car, but higher end models may also have dissimilar keys as compared to lower priced models from the same year. A locksmith’s expertise will be needed in order to guarantee that the correct key blank is being cut. Without the correct blank, even if the key is cut from code, it will not have the proper shape to open the locks or work in the ignition of the car.