The PK series CNC swivel tailstock is an accessory for the CNC swivel table. In operation, it can control the swivel table using the main machine's control system or a dedicated control system, enabling both the standard tailstock functions and synchronized rotation and clamping with the table. By utilizing the large-diameter through-hole in the spindle, it can install pneumatic (or hydraulic) spring chucks, power collets, or centers to assist in clamping the workpiece on the swivel table, achieving continuous machining of evenly or unevenly spaced holes, slots, and contours with high precision.