该装置与5C夹头配合，可夹持不同直径的刀具或工件，可安装于车床，磨床及其它专用设备上，具有精度高，操作方便，使用安全，夹紧牢固等优点。

5C collet is fit for this device,which can clamp tool or workpiece with different

diameter and figure.It can be fixed on lathe, grinder and other special equipment,with

such features as high precision,easy operation,safe application,strong clamping,etc