I have the Cold Steel "Trail Hawk". The shape of the head prevents it from being a good wood splitter. Get a hatchet that has a good wedge shape.

When you try to split wood with a Tomahawk the thin part of the blade goes in OK but when it get to the flared out part close to the handle the head just rolls out of the split. It does not have a wedge shape to keep the split going.

Better yet, just carry a good fixed blade knife. Works great for most things!