price crash Spring Collet Chuck CNC Engraving Machine Industrial Supplies ER329 x 7.1mm 0.008mm

1、The recessed platform in front of the chuck cone is designed to prevent dust during work. 2、Iron chips from directly entering during work which affects the accuracy of the tool holder. 3、The collet hole slot adopts grinding process which is more suitable for high-speed processing. 4、After cryogenic treatment the wear resistance is significantly improved and the accuracy and life of repeated clamping can be increased by about 50%. 5、Used in milling boring drilling and wire tapping operations and is suitable for all kinds of CNC engraving machines and other equipment.