Deft Hatchet is a Lumberjack Tool used for cutting down trees. It can also be used in combat.
Compared to a standard Hatchet, it cuts trees 20% faster.
Source
Procurer's missions
You can get this item by completing the "And my Axe?" mission from Naldren. The mission asks for 100 Ash Woods and can be repeated every 3 hours.