Achieve maximum concentricity, supreme clamping torque, and unmatched dynamic stability in high-speed applications using Shrink-Fit Chucks PSC Tool Holders. Precision-engineered for modern multi-tasking machines, turning-milling centers, and high-performance 5-axis CNC machining stations utilizing ISO 26623 polygon taper spindle connections (PSC), these thermal expansion holders clamp solid carbide and HSS tool shanks through controlled induction heating and cooling. The combination of the self-centering polygon interface and a slim, nutless monoblock profile provides exceptional rotational balance, minimal radial runout, and maximum tool clearance in tight workpiece contours.