4mm Roller Speed Tip

 4 mm Roller Speed Nozzle. Round or Half Round. The 4mm Roller Round or Half Round Speed Nozzle tip forms an ergonomic 30° angle with the floor for faster welding of flat floor areas. The preheat slot is narrow to focus hot air over the seam area, which helps prevent scorching. For use with round or half-round 4 mm welding rod only. Works with standard pencil tip nozzles.