FOR THROUGH COOLANT, IT IS NECESSARY TO HAVE
AN INDEPENDENT COOLANT PUMP WITH MINIMUM 30 BAR PRESSURE.
IT IS POSSIBLE TO USE THE SPINDLE WITHOUT THROUGH COOLANT,
BY ELIMINATING THE JOINT. IT IS ALSO POSSIBLE TO HAVE
THE SPINDLE STATIONERY, BY REMOVING JOINT AND SPLINE SHAFT,
ADDING RING NUT AND KEY WAY.