Ash is one of the woods used to make wands.
|“||The ash wand cleaves to its one true master and ought not to be passed on or gifted from the original owner, because it will lose power and skill. This tendency is extreme if the core is of unicorn. Old superstitions regarding wands rarely bear close examination, but I find that the old rhyme regarding rowan, chestnut, ash and hazel wands (rowan gossips, chestnut drones, ash is stubborn, hazel moans) contains a small nugget of truth. Those witches and wizards best suited to ash wands are not, in my experience, lightly swayed from their beliefs or purposes. However, the brash or over-confident witch or wizard, who often insists on trying wands of this prestigious wood, will be disappointed by its effects. The ideal owner may be stubborn, and will certainly be courageous, but never crass or arrogant.||”|
Ash wood is not only used in wands, but also in brooms. Most notably, the Firebolt racing broom has a handle made of ash.