toolholding system to note is heat shrinking technology. This technology is based on heating up and cooling down a toolholder through induction technology.

An induction coil—with some units using a high frequency coil—heats up the toolholder precisely at the area where the tool has to be inserted. After inserting the cutting tool, you need to cool the toolholder, which can be done via a cooling jacket. Cooling down the toolholder will cause the holder to shrink around the cutting tool shank.In this way, the cutting tool is clamped and offers a force conclusive grip, which allows high torques.

The result of the shrinking process is an almost homogeneous tool with many advantages. Main benefits of the heat shrinking technology include high run-out accuracy of less than 0.003 mm, high transmissible torques and a relatively slim toolholder design. If it comes to vibration dampening, hydraulic toolholders or polygonal toolholders offer better qualities than heat shrinking toolholders.