What is the difference when welding with nozzles of different sizes? TIG vertical butt welding

Subscribe http://m.youtube.com/c/weldHAGOJIBI - Instagram (-) .- http://www.instagram.com/weldhagojibi - Hello everyone. Vertical butt welding. Carbon steel plate was welded vertically butt to the previous time.   What is the difference if the nozzle size is different when doing hot pass? Video about the advantages and disadvantages of welding with nozzles of different sizes. Thanks for watching. Please take good care of your health. #vertical #butt #welding #Tigwelding #HOT #nozzle #gaslens #difference