Cute Girl Sexy Black Bikini Beach Stock Photo 1990262441 Shutterstock Turbo Universal Nozzle 3, 4, 5 and 6 mm. Turbo Universal Heat Welding Nozzle can heat weld any flooring material consistently without scorching or burning the material. Turbo Universal Heat Welding Nozzle handles 3, 4, 5 and 6 mm welding rod. Used in combination with the Turbo Roller Guide you can heat weld great seams at any skill level. Designed to concentrate the hot air on the heat welding rod and in the center of the groove to prevent burning the flooring material. Build with 43 preheating jets to preheat the flooring material, melt the welding rod and fuse the two together for the strongest weld possible. Used with the Turbo Roller Guide this heat welding nozzle will always stay in the groove and prevent the rod from jumping out of the groove. Heat weld up to 20 ft. per minute with solid results. You are able to set the perfect angle, pressure, and heat. Just set it and forget it!