Omatei streamline the design of chuck body, find a balance between size of chuck body and clamping force. A compact chuck body is trying to fit in more chuck in the deck of machine center. Pull Back style provide more concentricity than other stationary chuck. Cost effective stationary y collet chuck. Dead length design: no axial movement. High accuracy. High rigidity. Long product life. High resistant to cutting chips, fluid or dust. Chuck force-opening design ensures no workpieces jamming.