The laser key cutter can be in the style of a copier or encoder.
The difference between the machines is that the router outputs the thickness of the key instead of the groove on the blade of the key. Laser cutting is very common in cars after the 1990s. The standard key will resemble a serrated blade, but the laser cut button will cut the path on both sides to change its thickness. These types of keys are designed for use with a car lock of a slider system that provides vehicle protection against impact keys as well as most trial keys.