Professional drain cleaning nozzle for industrial use.  Steel bullet head with 1 forward facing jet and 3 rear facing jets, these help to cut a hole through the obstruction and the rear facing jets to drive the nozzle ahead so undermining the blockage and clearing the way.  Max. working pressure 5500 PSI / 380 Bar up to 36 litres / minute.  045 nozzle size, 0.70mm diameter nozzle.  1/4" female screw thread connection.