Abstract: An earth boring drill bit has a drilling fluid nozzle with features that protect the nozzle retaining ring from erosion and avoid pressing cracks. The drill bit has a passage with at least one outlet and a nozzle located at the outlet for discharging fluid. The nozzle has a shell mounted in the outlet and retained by a retaining ring. An insert is bonded inside the shell. The insert is of tungsten carbide or ceramic for resisting erosion. The insert has an extended portion that extends below the rim of the outer member for protecting the retaining ring from flowing drilling fluid.