The bull nose is the most effective way to guide BHA's through deviated holes where side tracking of the well may be prevalent. A standard bull nose has one jet port in the end that can be blanked or fitted with a nozzle. The jet nozzles can be replaced in the field and are interchangeable with other HOC tools. The jet nozzle housing/bushing is replaceable should it become damaged. Custom bull noses may feature reversed jetting ports.