HEAVY DUTY - robust base structure & slide with excellent rigidity and capable to handle heavy jobs. COLUMN & VERTICAL SLIDE - Both Guideways are ground finishsd for high rigidity & z- axis accuracy. OIL LUBRICATION - Magnet slide is immersed in oil bath and all other parts lubricated with centralised lubrication pump. WHEEL HEAD - Spindle is mounted on a rigidly constructed spindle housing which runs on preloaded super precision antifriction imported bearings which are grease packed for long life. Direct drive by flange mounted motor eliminate the vibration.