The Toprun-Er model is manufactured by D'Andrea, and is a toolholder that can be balanced. The model is ideal for use in a variety of applications with high speeds. The reason of balancing a toolholder is to enhance the distribution of the masses of its body to enable it to turn without producing any centrifugal force above a prescribed limit.
The Toprun-Er model has the capacity to extend the life service of both the tool, and of the machining center spindle. It also features an enhanced precision and surface finish. It minimizes both vibration and sound pressure levels of the machining center during operation. It is equipped with two counterweights in its graduated groove.