All tools of the same kind (stoneaxes, stoneshovels, .... including the hammer) of all players have the same durability. For example, if one of the players uses the axe, all axes loose durability-points. Same problem with the other tools. It is not possible to repair the tool to durability 100 %. Only after restart the tools can be repaired ONCE! But this does not help, because using one of these tools decreases all of them, also including the tools stored in the chests.
Posts made by Kiki_515
Alpha 6.0.0 ToolDurability