Hi, one of my passions is going fishing. I often fish for sea bass and in the evening I have to clean them. I printed this tool to remove the scales easily. I hope it's helpful for you too. I printed it with a 0.4mm nozzle, 0.16mm layer height, 5mm shaft and brim supports for greater adhesion. 100% filling because you will have to make a slight force to use it and better print it full for greater sturdiness.