Abstract: An abrasive suspension jet cutting nozzle is provided including an abrasive suspension inlet having a protrusion with an inlet conduit formed therein for receiving an abrasive suspension fluid. Also included is a substantially annular high pressure propellant inlet adapted to receive the abrasive suspension inlet in fixed relationship therewith. The high pressure propellant inlet has an inlet conduit for receiving abrasive suspension fluid. Further provided is an insert positioned within the high pressure propellant inlet with a recess adapted to receive the protrusion of the abrasive suspension inlet. The insert has at least one channel for directing the abrasive suspension fluid between the protrusion of the abrasive suspension inlet and the recess of the insert for combining with the abrasive suspension fluid such that both exit the nozzle.