You're really asking the wrong question. Even the crappiest axe can be robust enough. The question you should be asking, "is it safe enough?" If you're looking for a safe axe I wouldn't use a hatchet at all. It's better to go for an axe about 5 to 6 inches longer in the shaft, and about 1/2 pound heavier in the head. If you use this axe 1 handed, holding it about 8 inches in from the end then it's safer in use than a hatchet.<br>If the axe is something you want to keep in your car, then a wooden shaft probably isn't such a good idea.<br>What exactly do you anticipate needing an axe for? Consider a pocket chainsaw, a wire saw, a folding saw, a bow saw, before considering an axe.