If you purchase cheap dual contact tooling after being told by a supplier that it will work just as good as the original you risk unsatisfactory performance.
BIG-PLUS tool holders are supported on the flange face and taper providing excellent rigidity. It is interchangeable with existing machines and tool holders.
Tool holders play a critical role in connecting elements maximizing machining performance, however, several different styles are available and the most suitable one will depend on the operation.