You can enable item durability in the ItemList in the Durability Details.
Use Durability – If true the item will have a durability value and use the durability system.
Max Durability – Is the items durability value when fully repaired
Destroy Item At 0 Durability – If true the item will be destroyed when the item hits 0 durability value
Can Repair – If true you can right click the item in the inventory and repair it if the items durability value is less then 0
Repair Actors – These are actors you need to be close to be able to repair the item
Repair Cost – This is the item cost to repair the item