Item repair

Item repair is a feature that allows players to repair damaged items with durability (tools, armor, and weapons) by combining them in the crafting grid or a grindstone.

Two items of the same type and material can be placed anywhere on the crafting grid or grindstone, which results in a single repaired item. The durability of the repaired item equals the sum of the old items' durability plus a 'repair bonus' of 5% of the item's maximum uses, up to a limit of the maximum durability for that item. Repairing gives a slight benefit in conserving inventory space, as it combines two non-stackable objects into one.[1]

The repaired object is never enchanted even if both items were to have the exact same enchantments, with the exception of curse enchantments, which are transferred to the repaired item. Therefore, using a "junk" item in a repair may sometimes be useful for removing an unwanted enchantment from an item prior to enchanting it again. Tools made of different materials (for example, a wood and a stone pickaxe) cannot be combined.