Gas nozzle hot end

Gas nozzles come in many different shapes but they all have 1 thing in common: they are really cheap. I paid 6€ for a set of 5. After looking to various models i found the better suited are the "gpl nozzles", with 8mm screw and round body. The inside diameter is 5mm. Don't take the methane nozzles because they have bigger holes. With the smallest gpl nozzle the pla filament i get is something between 0.45 and 0.5 mm which for me is more than satisfying.