1. CNC spindle cnc machining collet chuck guide bush for automatic cnc machine. Accuracy 0.003-0.005 MM. 2. Support model: CITIZEN /STAR/TSUGAMI/NOMURA/TORNOS collet chuck. 3. Long used tool-life and perfect cutting effect. 4. Produced with advanced equipments and process. 5. All products go through in-process and final inspection.