Air Can Spray Nozzle
thingiverse
Compressed air spray nozzles are available, modeled after Dust-Off brand cans but fitting other brands as well. The inlet hole has a diameter of 4mm. There are two versions: one with a 15mm tip and the other with a 40mm tip. A picture of the nozzle on its can is shown, being the original part I made and tweaked to enhance airflow while conserving some plastic.
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