Hole Finishing ROTAFLEX™ High-Performance Boring Systems Design Principle Basic adaptor Eccentric bushing Boring bar adaptor Eccentric bushing for fine adjustment Regular fine boring heads have a threaded After rough adjustment of the insert spindle as an adjustment mechanism. In holder, the easy-to-read scale enables this situation, spindle inaccuracy can cause fine adjustment to reach precisely the backlash and require extra effort during setup. diameter needed. Here, no parallax The ROTAFLEX eccentric bushing is easy to errors occur when reading the scale. use, and machining forces are transmitted via a larger surface, ensuring a consistent diameter during machining. Adjustment Set fine Unlock fine adjustment Lock fine Unlock insert Coarse adjustment adjustment ring to zero adjustment ring holder on pre-set equipment Unlock fine Lock fine Lock insert holder Control cut Measure adjustment ring Readjust adjustment ring W68 widia.com