All main columns are threaded M8 x 1.25mm and are interchangeable with Kennedy, Oxford, Mitutoyo etc. base units except mini-mag (M6 x 1mm) also suitable for incorporating into special fixtures or threaded pot magnets. | | Light Duty Fitment – Plain | Fitted as standard to E909 Kennedy Mini-Mag Stand. Column: 6.3 x 120mm. | Clamp hole: 8mm. | Threaded: M5.