CNC Retention knob & Pull Stud
Introduction Retention knobs to the standard of taper shank for NC tools Retention knob standard GB10945-89 "7:24 conical tool shank 40, 45 and 50 for automatic tool change machine tools The pull stud for tapered shank is made according to the international standard IS07388 / 1984. It is divided into two types: A and