The RT-5CL CNC dividing head is one of the main accessories of CNC milling machines, machining centers, and other machine tools, and can also be used as the main accessory of semi-automatic milling machines or other machine tools. This indexing head can be used both vertically and horizontally, achieving indexing work at any angle. The workpiece is mounted on a 5C spring chuck, and the clamping and releasing of the workpiece is completed by pushing the handle and driving the pulling tube, making the operation simple and flexible.