Made of wear-resistant, hardened steel, provided with front jet insert and blind plug (interchangeable). Angle of jet backwards, sturdy wall thickness, long service life and a minimum of wear and tear. All nozzles from art.30.038 onward are provided with steel, ceramic lined inserts. Because of this, the efficiency is considerably higher compared with those nozzles with drilled holes and the service life is several times longer. Appropriate for removal of sludge deposits and cloggings.