A tapered nozzle cap 5 is coupled to the front side of the housing 2′ to guide currents of air passing through the open spaces S within the protective ring 4 around the inner barrel 1 to {HEAD ~ the outside} of {TAIL ~ the hot air} blowing gun around the front nozzle tip 
A tapered nozzle cap 5 is coupled to the front side of the housing 2′ to guide currents of air passing through the open spaces S within the protective ring 4 around the inner barrel 1 to { HEAD ~ the outside } of { TAIL ~ the hot air } blowing gun around the front nozzle tip
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