Tools are craftable items that preform a specific task when used, such as mining certain materials, fighting mobs, and setting things on fire.
Tools have a damage value attached to their item. When the player uses a tool, the damage will increase. Eventually, the tool will break and disappear. Some tools are used by just clicking, such as a pickaxe. Other tools (like the flint and steel) are activated by shift-clicking.
Tool Image Clock Compass Fishing Rod Flint and Steel Hoe Axe Pickaxe Shear Shovel