This article is a very extensive review of this hatchet and how quality is determined…..
The result is that quality hand hatchets have an overall head thickness not much more than a knife blade. The result of this simplistic design is that it produces a low mass head relative to the handle, and absolutely no significant inertia wedging as the head slams into the workpiece. Instead the blade slides neatly into the wood like a screwdriver wedging its parallel sides tightly against the wood grain. And that is if you can generate enough speed to make the hatchet head cut more than just superficial wounding the branch. Otherwise a simple band aid will fix the cut in the cellulose.