Zona model saws arrive with the blades cutting on the pull stroke, which in western saws is the wrong way around. The pull stroke requires a different approach to sawing because it can sometimes seem as though we are standing on the wrong side of the saw. This is especially so for those of us raised in the west who are used to pushing the saw into the wood instead of pulling. This video shows you how reverse the direction of the teeth to give a little more bite to this feisty little saw, which no woodworker should be without by the way. I have used these saws for decades now and they give the thinnest cut of any saw I own and on the push stroke at that. They are tough enough to cut many materials ranging from plastics and mild metals, abalone, bone and much more. Though the teeth are originally set in the spline to cut on the pull stroke, the saws are a made in the USA product. Having a spline means there is no particular benefit to its manufacturers arrangement so I suggest you try it both ways and see what you think.
Here’s a video to show you how.