Replacement connection hose for all RODIADRILL wet drilling machines. Application advantages: For retrofitting or replacing all RODIADRILL wet drilling motors. Flexible water hose connection with a quick coupling NW 7.2 and ball valve ensure optimal use. Area of application: Replacement connection hose for all wet drilling machines in the RODIADRILL family. The ball valve regulates the necessary water volume. It is directly screwed into the motor, with a connection via quick coupling NW 7.2 for use with the water pressure tank or water connection hose.