For high-speed machining, the process may need to be adjusted and intuition opposed. In the event of chatter, people natural reaction is to reduce the spindle speed, but in fact it is a higher speed increase solution productivity. Another flutter problem is often think of ways to change the aspect ratio with a lower tool, because people believed that the higher toughness shorter tools. However, in some cases, the length of the tool, but may be higher to provide better processing operations.

The first of these phenomena, namely the relationship between flutter and speed, has been understood in many plants, including those workshops often use this knowledge into account. Spindle speed, tool holder and cutting tool for each different combination represents a special kind of its own inherent dynamic system (s) stable characteristic frequency. For such milling - the cutting edge and one of these impact velocity almost match the resonant frequency, and the tool can (faster or slower than the speed of cutting depth of cut) higher depths of cut to smooth cut. It has been found that these "sweet spot" What kind of benefits can be generated for the process of processing workshop reluctant to lower the spindle speed to avoid chatter, they are available with a maximum stable speed to achieve high material removal rate .