Modern CNC machines allow synchronous thread tapping without a compensating chuck, also called "rigid tapping". The backlash of the spindle causes stress to one side of the cut tap or form tap, respectively. This may result in a reduced tool life and lack of quality in the surface of the thread. KOMET JEL synchro tapping chucks compensate for the length errors caused by the backlash and create the prerequisites for achieving optimum performance from your tapping tools.