The importance of toolholder retention knobs

High-speed machining — in excess of 20,000 rpm — often is used in aerospace when machining exotic alloys and hard metals, such as titanium. At these speeds, precise, secure seating of tapered toolholders in the spindle becomes even more critical. Failing to pay attention to this single detail can lead to decreased productivity, less precise machining, reduced tool life and damaged workpieces.