The Dwarven Hand Axe is a specialized type of Hand Axe. Like all tools, it breaks often when used by players with lower levels in the Lumberjacking skill. It is commonly abbreviated as DHA.
This rare, non-craftable item is found most often as a dropped bag in the forest, and occasionally in RTQs or via some other GM source.
It does not survive long for players under level 10, and even for players at level 10+ it will eventually break. These axes yield 2 logs or 2 ambers per use. However, one still only gains 1 success in the Lumberjacking skill for each successful harvest.
At the moment, it's best to save these until you are at level 8 Lumberjacking or above, or trade them to other players.