Pair of positioner knives magnetic for planer and thicknesser shaft 54 mm

The operation of these positioners is very simple : a powerful magnet maintains a positioner installed at each end of the shaft.
The knive pushed by its springs, comes automatically abut under the positioner. All that remains is to lock the screws.

Each pair of positioners is adapted to a specific shaft diameter for greater speed and precision in installing the irons!