Abstract: A tool for discharging pressurized fluids into a wellbore at high velocity to clean foreign matter from the wellbore. The tool includes an elongated, cylindrical body having an upper end that is threaded for attachment to a fluid supply conduit and a lower end that is circumferentially tapered to a narrowed, planar surface. A fluid entry channel is located in the upper end of the cylindrical body. In communication with the fluid entry channel are a pair of fluid discharge channels which terminate in a pair of fluid discharge ports. Each of the fluid discharge ports is positioned adjacent the narrowed, planar surface at the lower, circumferentially-tapered end of the cylindrical body.