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 3000 PSI / 200 Bar up to 20 litres / minute.  045 nozzle size (0.70mm diametre nozzle).  1/8" female screw thread connection.