The main difference between a splitting axe and a chopping axe is the size and weight of the head. A chopping axe has a heavier head that is designed for chopping through thick tree trunks, while a splitting axe has a lighter head that is better suited for splitting wood along the grain. Another difference between these two types of axes is the shape of the blade. A chopping axe has a more curved blade that makes it easier to chop through wood, while a splitting axe has a straighter blade that helps it split wood more evenly. Finally, another difference between these two types of axes is how they are used. A chopping axe is best for cutting down trees or large branches, while a splitting axe is better for breaking up already-cut logs into smaller pieces of firewood.