The most important requirements for a tool holder are the rigidity, clamping force, run-out accuracy and balancing quality, especially when high speend machining. For most precision machining, toolholders need to have a run-out accuracy less than 0.003 mm. lt requiresdifferent tool holders for different machining conditions, without the right tool holder it may create poor tool life and poor quality products, sometimes even ruin the whole project.
lf to choose the same tool holder from different suppliers, it may differ from the material, tolerance control, runout, hardness and surface treatment, though those are the basicways, we will know how about the machining results and durabitity.