The definition of precision cutting is to use a precisely controlled special planer to cut a piece of metal profile with a specified thickness according to the needs, and then bend it upwards into an upright state to become a heat dissipation fin. In fact, a simpler way to understand is to cut a who

It is fairly easy to identify a Skived Heat sink as the heat sink has a curve where the blade finishes its cut at the base of the heatsink as shown in the picture. In addition, the fins are not completely vertical, and curve slightly. This is more pronounced at the fins get taller.