•Clamping of Irregular Work : It shows excellent performance for irregular work such as square bar, especially, for manufacturing irregular materials using a bar feeder. •High Performance and High Accuracy : It has the same structure as CAH power chuck, and guarantees excellent performance and quality. Attachment part and changable parts are compatible each other. •Spindle Direct-Mounting Type : International standard A-type spindle specification is applied to CAHTA type, so it is possible to directly attach to short taper spindle.