Workbenches can be mined with any tool, or without a tool, but the hatchet is the quickest.
Crafting a workbench takes four wooden boards.
Right clicking a crafting table placed in the world will open the 3×3 crafting grid which allows you to craft more items than with the crafting grid in your inventory.
If you disconnect, move more than eight meters away or close the crafting interface the items inside will drop in front of you.
Workbenches can be used as a fuel in furnaces, smelting 1.5 items per workbench.